{ "schema_version": "hardbargains.mac-resale-price-tracker.v1", "generated_at": "2026-08-30T22:07:14+00:00", "source": { "database": "../minime/data/db/minime.sqlite", "database_mode": "read-only", "total_database_price_observations": 15163, "catalog_latest_observation": "2026-08-30T21:20:18Z", "history_first_day": "2026-08-21", "history_last_day": "2026-08-30", "history_day_count": 10, "filters": { "eligible_in_stock_asking_observations": 2631, "excluded_implausible_low": 1, "excluded_non_secondary_condition": 2416, "excluded_not_confirmed_in_stock": 274, "excluded_price_kind_current-bid": 2633, "excluded_unclassified_era": 5045, "mac_desktop_price_observations": 14763 }, "method": "Mac mini and Mac Studio; Apple Silicon and Intel Core eras; secondhand conditions; in-stock asking prices plus explicit shipping; one URL/condition observation per America/New_York day. Auction bids, completed sales, parts-only, new, unclassified and implausibly low observations are excluded." }, "current": { "as_of": "2026-08-30T21:13:14Z", "date": "2026-08-30", "eras": [ { "era": "silicon", "observed_offers": 732, "median_ask_usd": 1210.28, "lowest_ask_usd": 205.92, "highest_ask_usd": 25000.0, "source_count": 14, "products": [ { "product": "Mac Studio", "observed_offers": 250, "median_ask_usd": 3816.43, "lowest_ask_usd": 1224.73, "highest_ask_usd": 25000.0, "source_count": 8 }, { "product": "Mac mini", "observed_offers": 482, "median_ask_usd": 789.99, "lowest_ask_usd": 205.92, "highest_ask_usd": 5349.0, "source_count": 12 } ], "models": [ { "product": "Mac Studio", "chip": "M1", "observed_offers": 1, "median_ask_usd": 2340.0, "lowest_ask_usd": 2340.0, "highest_ask_usd": 2340.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M1 Max", "observed_offers": 54, "median_ask_usd": 1813.96, "lowest_ask_usd": 1224.73, "highest_ask_usd": 10007.43, "source_count": 3 }, { "product": "Mac Studio", "chip": "M1 Ultra", "observed_offers": 24, "median_ask_usd": 4764.99, "lowest_ask_usd": 2599.99, "highest_ask_usd": 10074.32, "source_count": 3 }, { "product": "Mac Studio", "chip": "M2 Max", "observed_offers": 24, "median_ask_usd": 2554.68, "lowest_ask_usd": 1653.97, "highest_ask_usd": 4784.98, "source_count": 2 }, { "product": "Mac Studio", "chip": "M2 Ultra", "observed_offers": 26, "median_ask_usd": 4299.0, "lowest_ask_usd": 3499.0, "highest_ask_usd": 8400.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M3 Ultra", "observed_offers": 60, "median_ask_usd": 9216.5, "lowest_ask_usd": 4529.46, "highest_ask_usd": 25000.0, "source_count": 6 }, { "product": "Mac Studio", "chip": "M4 Max", "observed_offers": 61, "median_ask_usd": 3587.1, "lowest_ask_usd": 1949.0, "highest_ask_usd": 7099.99, "source_count": 6 }, { "product": "Mac mini", "chip": "M1", "observed_offers": 114, "median_ask_usd": 449.99, "lowest_ask_usd": 205.92, "highest_ask_usd": 1234.0, "source_count": 5 }, { "product": "Mac mini", "chip": "M2", "observed_offers": 56, "median_ask_usd": 606.55, "lowest_ask_usd": 425.0, "highest_ask_usd": 950.03, "source_count": 3 }, { "product": "Mac mini", "chip": "M2 Pro", "observed_offers": 28, "median_ask_usd": 1161.28, "lowest_ask_usd": 673.71, "highest_ask_usd": 2000.0, "source_count": 3 }, { "product": "Mac mini", "chip": "M4", "observed_offers": 227, "median_ask_usd": 928.0, "lowest_ask_usd": 650.0, "highest_ask_usd": 2299.0, "source_count": 11 }, { "product": "Mac mini", "chip": "M4 Pro", "observed_offers": 57, "median_ask_usd": 1849.95, "lowest_ask_usd": 805.0, "highest_ask_usd": 5349.0, "source_count": 7 } ], "conditions": [ { "condition": "open-box", "observed_offers": 98, "median_ask_usd": 1406.75, "lowest_ask_usd": 547.7, "highest_ask_usd": 18999.0, "source_count": 5 }, { "condition": "refurbished", "observed_offers": 152, "median_ask_usd": 1279.95, "lowest_ask_usd": 449.0, "highest_ask_usd": 20999.0, "source_count": 6 }, { "condition": "used", "observed_offers": 482, "median_ask_usd": 1087.87, "lowest_ask_usd": 205.92, "highest_ask_usd": 25000.0, "source_count": 9 } ] }, { "era": "intel", "observed_offers": 379, "median_ask_usd": 190.0, "lowest_ask_usd": 45.79, "highest_ask_usd": 1038.19, "source_count": 6, "products": [ { "product": "Mac mini", "observed_offers": 379, "median_ask_usd": 190.0, "lowest_ask_usd": 45.79, "highest_ask_usd": 1038.19, "source_count": 6 } ], "models": [ { "product": "Mac mini", "chip": "Intel Core 2 Duo", "observed_offers": 13, "median_ask_usd": 74.9, "lowest_ask_usd": 65.99, "highest_ask_usd": 249.0, "source_count": 2 }, { "product": "Mac mini", "chip": "Intel Core i3", "observed_offers": 19, "median_ask_usd": 198.49, "lowest_ask_usd": 154.99, "highest_ask_usd": 419.95, "source_count": 4 }, { "product": "Mac mini", "chip": "Intel Core i5", "observed_offers": 204, "median_ask_usd": 107.99, "lowest_ask_usd": 45.79, "highest_ask_usd": 1038.19, "source_count": 5 }, { "product": "Mac mini", "chip": "Intel Core i7", "observed_offers": 142, "median_ask_usd": 399.97, "lowest_ask_usd": 89.0, "highest_ask_usd": 999.0, "source_count": 3 }, { "product": "Mac mini", "chip": "Intel Core i9", "observed_offers": 1, "median_ask_usd": 966.22, "lowest_ask_usd": 966.22, "highest_ask_usd": 966.22, "source_count": 1 } ], "conditions": [ { "condition": "open-box", "observed_offers": 10, "median_ask_usd": 317.49, "lowest_ask_usd": 85.57, "highest_ask_usd": 400.0, "source_count": 1 }, { "condition": "refurbished", "observed_offers": 105, "median_ask_usd": 599.0, "lowest_ask_usd": 99.99, "highest_ask_usd": 999.0, "source_count": 4 }, { "condition": "used", "observed_offers": 264, "median_ask_usd": 118.03, "lowest_ask_usd": 45.79, "highest_ask_usd": 1038.19, "source_count": 4 } ] } ] }, "longitudinal": { "reobserved_offers": 553, "lower": 215, "higher": 21, "unchanged": 317, "median_change_usd": 0.0 }, "questions": { "mac_mini_current": { "eras": [ { "era": "silicon", 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"highest_ask_usd": 999.0, "source_count": 4 }, { "condition": "used", "observed_offers": 264, "median_ask_usd": 118.03, "lowest_ask_usd": 45.79, "highest_ask_usd": 1038.19, "source_count": 4 } ] } ] } }, "days": [ { "date": "2026-08-21", "observed_through": "2026-08-22 03:59:55", "eras": [ { "era": "silicon", "observed_offers": 183, "median_ask_usd": 1549.0, "lowest_ask_usd": 269.0, "highest_ask_usd": 10800.0, "source_count": 5, "changes": { "new_offers": 183, "price_cuts": 0, "price_rises": 0, "unchanged_reobservations": 0, "availability_returns": 0, "out_of_stock": 0 }, "models": [ { "product": "Mac Studio", "chip": "M1", "observed_offers": 1, "median_ask_usd": 2340.0, "lowest_ask_usd": 2340.0, "highest_ask_usd": 2340.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M1 Max", "observed_offers": 22, "median_ask_usd": 2069.98, "lowest_ask_usd": 1407.51, "highest_ask_usd": 10007.43, "source_count": 2 }, { "product": "Mac Studio", "chip": "M1 Ultra", "observed_offers": 9, "median_ask_usd": 4999.0, "lowest_ask_usd": 3045.34, "highest_ask_usd": 10074.32, "source_count": 1 }, { "product": "Mac Studio", "chip": "M2", "observed_offers": 1, "median_ask_usd": 2559.35, "lowest_ask_usd": 2559.35, "highest_ask_usd": 2559.35, "source_count": 1 }, { "product": "Mac Studio", "chip": "M2 Max", "observed_offers": 6, "median_ask_usd": 2983.74, "lowest_ask_usd": 1829.46, "highest_ask_usd": 3105.82, "source_count": 2 }, { "product": "Mac Studio", "chip": "M2 Ultra", "observed_offers": 14, "median_ask_usd": 4261.99, "lowest_ask_usd": 3999.99, "highest_ask_usd": 8507.01, "source_count": 1 }, { "product": "Mac Studio", "chip": "M3 Ultra", "observed_offers": 11, "median_ask_usd": 6799.0, "lowest_ask_usd": 5809.28, "highest_ask_usd": 10800.0, "source_count": 2 }, { "product": "Mac Studio", "chip": "M4 Max", "observed_offers": 24, "median_ask_usd": 3795.0, "lowest_ask_usd": 2700.0, "highest_ask_usd": 7399.99, "source_count": 1 }, { "product": "Mac mini", "chip": "M1", 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1529.46, "lowest_ask_usd": 269.0, "highest_ask_usd": 10112.79, "source_count": 2 } ] }, { "era": "intel", "observed_offers": 33, "median_ask_usd": 71.03, "lowest_ask_usd": 65.79, "highest_ask_usd": 420.0, "source_count": 2, "changes": { "new_offers": 33, "price_cuts": 0, "price_rises": 0, "unchanged_reobservations": 0, "availability_returns": 0, "out_of_stock": 0 }, "models": [ { "product": "Mac mini", "chip": "Intel Core 2 Duo", "observed_offers": 6, "median_ask_usd": 72.55, "lowest_ask_usd": 65.99, "highest_ask_usd": 78.6, "source_count": 1 }, { "product": "Mac mini", "chip": "Intel Core i3", "observed_offers": 2, "median_ask_usd": 381.98, "lowest_ask_usd": 358.95, "highest_ask_usd": 405.0, "source_count": 1 }, { "product": "Mac mini", "chip": "Intel Core i5", "observed_offers": 25, "median_ask_usd": 70.99, "lowest_ask_usd": 65.79, "highest_ask_usd": 420.0, "source_count": 2 } ], "conditions": [ { "condition": "refurbished", "observed_offers": 3, "median_ask_usd": 405.0, "lowest_ask_usd": 358.95, "highest_ask_usd": 420.0, "source_count": 1 }, { "condition": "used", "observed_offers": 30, "median_ask_usd": 70.96, "lowest_ask_usd": 65.79, "highest_ask_usd": 78.6, "source_count": 1 } ] } ], "largest_price_cuts": [] }, { "date": "2026-08-22", "observed_through": "2026-08-23 03:45:34", "eras": [ { "era": "silicon", "observed_offers": 233, "median_ask_usd": 1385.73, "lowest_ask_usd": 84.99, "highest_ask_usd": 21389.0, "source_count": 6, "changes": { "new_offers": 67, "price_cuts": 15, "price_rises": 7, "unchanged_reobservations": 144, "availability_returns": 0, "out_of_stock": 0 }, "models": [ { "product": "Mac Studio", "chip": "M1", "observed_offers": 3, "median_ask_usd": 1549.0, "lowest_ask_usd": 589.99, "highest_ask_usd": 2340.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M1 Max", "observed_offers": 27, "median_ask_usd": 1999.0, "lowest_ask_usd": 1385.73, "highest_ask_usd": 10007.43, "source_count": 2 }, { "product": "Mac Studio", "chip": 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"Mac mini", "chip": "M1", "observed_offers": 52, "median_ask_usd": 460.22, "lowest_ask_usd": 84.99, "highest_ask_usd": 829.0, "source_count": 4 }, { "product": "Mac mini", "chip": "M2", "observed_offers": 33, "median_ask_usd": 649.07, "lowest_ask_usd": 474.99, "highest_ask_usd": 962.98, "source_count": 2 }, { "product": "Mac mini", "chip": "M2 Pro", "observed_offers": 8, "median_ask_usd": 1136.48, "lowest_ask_usd": 673.71, "highest_ask_usd": 1254.95, "source_count": 1 }, { "product": "Mac mini", "chip": "M4", "observed_offers": 22, "median_ask_usd": 1024.0, "lowest_ask_usd": 225.0, "highest_ask_usd": 1599.99, "source_count": 5 }, { "product": "Mac mini", "chip": "M4 Pro", "observed_offers": 1, "median_ask_usd": 1699.99, "lowest_ask_usd": 1699.99, "highest_ask_usd": 1699.99, "source_count": 1 } ], "conditions": [ { "condition": "open-box", "observed_offers": 22, "median_ask_usd": 2499.78, "lowest_ask_usd": 295.0, "highest_ask_usd": 10800.0, "source_count": 2 }, { "condition": "refurbished", "observed_offers": 79, "median_ask_usd": 1179.99, "lowest_ask_usd": 84.99, "highest_ask_usd": 21389.0, "source_count": 5 }, { "condition": "used", "observed_offers": 132, "median_ask_usd": 1528.49, "lowest_ask_usd": 269.0, "highest_ask_usd": 21250.0, "source_count": 2 } ] }, { "era": "intel", "observed_offers": 108, "median_ask_usd": 118.03, "lowest_ask_usd": 64.0, "highest_ask_usd": 629.95, "source_count": 3, "changes": { "new_offers": 75, "price_cuts": 1, "price_rises": 0, "unchanged_reobservations": 32, "availability_returns": 0, "out_of_stock": 0 }, "models": [ { "product": "Mac mini", "chip": "Intel Core 2 Duo", "observed_offers": 6, "median_ask_usd": 72.55, "lowest_ask_usd": 65.99, "highest_ask_usd": 78.6, "source_count": 1 }, { "product": "Mac mini", "chip": "Intel Core i3", "observed_offers": 7, "median_ask_usd": 205.68, "lowest_ask_usd": 170.47, "highest_ask_usd": 405.0, "source_count": 2 }, { "product": "Mac mini", "chip": "Intel Core i5", "observed_offers": 68, "median_ask_usd": 94.49, "lowest_ask_usd": 64.0, "highest_ask_usd": 409.0, "source_count": 3 }, { "product": "Mac mini", "chip": "Intel Core i7", "observed_offers": 27, "median_ask_usd": 190.0, "lowest_ask_usd": 79.99, "highest_ask_usd": 629.95, "source_count": 1 } ], "conditions": [ { "condition": "open-box", "observed_offers": 7, "median_ask_usd": 339.98, "lowest_ask_usd": 234.0, "highest_ask_usd": 382.98, "source_count": 1 }, { "condition": "refurbished", "observed_offers": 13, "median_ask_usd": 358.95, "lowest_ask_usd": 99.99, "highest_ask_usd": 579.99, "source_count": 3 }, { "condition": "used", "observed_offers": 88, "median_ask_usd": 99.76, "lowest_ask_usd": 64.0, "highest_ask_usd": 629.95, "source_count": 1 } ] } ], "largest_price_cuts": [ { "era": "silicon", "product": "Mac Studio", "chip": "M4 Max", "source": "ebay", "from_usd": 6199.99, "to_usd": 4449.99, "change_usd": -1750.0 }, { "era": "silicon", "product": "Mac Studio", "chip": "M4 Max", "source": "ebay", "from_usd": 5599.99, "to_usd": 4249.99, "change_usd": -1350.0 }, { "era": "silicon", "product": "Mac Studio", "chip": "M1 Max", "source": "ebay", "from_usd": 4074.32, "to_usd": 3774.32, "change_usd": -300.0 }, { "era": "silicon", "product": "Mac Studio", "chip": "M4 Max", "source": "ebay", "from_usd": 7399.99, "to_usd": 7099.99, "change_usd": -300.0 }, { "era": "silicon", "product": "Mac Studio", "chip": "M4 Max", "source": "ebay", "from_usd": 6899.99, "to_usd": 6599.99, "change_usd": -300.0 } ] }, { "date": "2026-08-23", "observed_through": "2026-08-24T03:08:21Z", "eras": [ { "era": "silicon", "observed_offers": 231, "median_ask_usd": 1493.07, "lowest_ask_usd": 380.0, "highest_ask_usd": 21389.0, "source_count": 8, "changes": { "new_offers": 46, "price_cuts": 1, "price_rises": 1, "unchanged_reobservations": 183, "availability_returns": 1, "out_of_stock": 0 }, "models": [ { "product": "Mac Studio", "chip": "M1", "observed_offers": 1, "median_ask_usd": 2340.0, "lowest_ask_usd": 2340.0, "highest_ask_usd": 2340.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M1 Max", "observed_offers": 28, "median_ask_usd": 1907.84, "lowest_ask_usd": 1224.73, "highest_ask_usd": 10007.43, "source_count": 3 }, { "product": "Mac Studio", "chip": "M1 Ultra", "observed_offers": 11, "median_ask_usd": 5230.95, "lowest_ask_usd": 3045.34, "highest_ask_usd": 10074.32, "source_count": 1 }, { "product": "Mac Studio", "chip": "M2 Max", "observed_offers": 13, "median_ask_usd": 2273.0, "lowest_ask_usd": 1829.46, "highest_ask_usd": 4499.95, "source_count": 2 }, { "product": "Mac Studio", "chip": "M2 Ultra", "observed_offers": 15, "median_ask_usd": 4222.9, "lowest_ask_usd": 3999.0, "highest_ask_usd": 8507.01, "source_count": 1 }, { "product": "Mac Studio", "chip": "M3 Ultra", "observed_offers": 13, "median_ask_usd": 7679.99, "lowest_ask_usd": 6150.0, "highest_ask_usd": 21389.0, "source_count": 1 }, { "product": "Mac Studio", "chip": "M4", "observed_offers": 1, "median_ask_usd": 1364.0, 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"observed_offers": 31, "median_ask_usd": 123.5, "lowest_ask_usd": 45.79, "highest_ask_usd": 375.0, "source_count": 1 } ] } ], "largest_price_cuts": [ { "era": "silicon", "product": "Mac mini", "chip": "M4 Pro", "source": "ebay", "from_usd": 1749.0, "to_usd": 1599.0, "change_usd": -150.0 }, { "era": "silicon", "product": "Mac mini", "chip": "M4", "source": "swappa", "from_usd": 1236.0, "to_usd": 1133.0, "change_usd": -103.0 }, { "era": "silicon", "product": "Mac mini", "chip": "M4 Pro", "source": "swappa", "from_usd": 3399.0, "to_usd": 3296.0, "change_usd": -103.0 }, { "era": "intel", "product": "Mac mini", "chip": "Intel Core i5", "source": "amazon", "from_usd": 469.0, "to_usd": 399.99, "change_usd": -69.01 }, { "era": "silicon", "product": "Mac mini", "chip": "M4", "source": "ebay", "from_usd": 789.99, "to_usd": 724.99, "change_usd": -65.0 } ] }, { "date": "2026-08-30", "observed_through": "2026-08-30T21:13:14Z", "eras": [ { "era": "silicon", "observed_offers": 68, "median_ask_usd": 868.49, "lowest_ask_usd": 399.99, "highest_ask_usd": 5210.95, "source_count": 6, "changes": { "new_offers": 26, "price_cuts": 21, "price_rises": 2, "unchanged_reobservations": 19, "availability_returns": 0, "out_of_stock": 1 }, "models": [ { "product": "Mac Studio", "chip": "M1 Ultra", "observed_offers": 2, "median_ask_usd": 5025.98, "lowest_ask_usd": 4841.0, "highest_ask_usd": 5210.95, "source_count": 2 }, { "product": "Mac mini", "chip": "M1", "observed_offers": 8, "median_ask_usd": 641.0, "lowest_ask_usd": 399.99, "highest_ask_usd": 762.29, "source_count": 2 }, { "product": "Mac mini", "chip": "M2", "observed_offers": 11, "median_ask_usd": 757.0, "lowest_ask_usd": 524.99, "highest_ask_usd": 869.0, "source_count": 2 }, { "product": "Mac mini", "chip": "M2 Pro", "observed_offers": 7, "median_ask_usd": 1164.75, "lowest_ask_usd": 1012.98, "highest_ask_usd": 1199.99, "source_count": 2 }, { "product": "Mac mini", "chip": "M4", "observed_offers": 33, "median_ask_usd": 949.0, "lowest_ask_usd": 650.0, "highest_ask_usd": 2299.0, "source_count": 4 }, { "product": "Mac mini", "chip": "M4 Pro", "observed_offers": 7, "median_ask_usd": 1824.98, "lowest_ask_usd": 1350.0, "highest_ask_usd": 3193.0, "source_count": 4 } ], "conditions": [ { "condition": "open-box", "observed_offers": 10, "median_ask_usd": 1299.0, "lowest_ask_usd": 725.83, "highest_ask_usd": 1824.98, "source_count": 2 }, { "condition": "refurbished", "observed_offers": 22, "median_ask_usd": 979.99, "lowest_ask_usd": 519.95, "highest_ask_usd": 5210.95, "source_count": 3 }, { "condition": "used", "observed_offers": 36, "median_ask_usd": 756.41, "lowest_ask_usd": 399.99, "highest_ask_usd": 4841.0, "source_count": 4 } ] }, { "era": "intel", "observed_offers": 58, "median_ask_usd": 184.97, "lowest_ask_usd": 59.99, "highest_ask_usd": 722.95, "source_count": 2, "changes": { "new_offers": 29, "price_cuts": 1, "price_rises": 2, "unchanged_reobservations": 26, "availability_returns": 22, "out_of_stock": 0 }, "models": [ { "product": "Mac mini", "chip": "Intel Core 2 Duo", "observed_offers": 7, "median_ask_usd": 74.9, "lowest_ask_usd": 66.98, "highest_ask_usd": 84.95, "source_count": 1 }, { "product": "Mac mini", "chip": "Intel Core i3", "observed_offers": 8, "median_ask_usd": 206.18, "lowest_ask_usd": 179.95, "highest_ask_usd": 405.0, "source_count": 2 }, { "product": "Mac mini", "chip": "Intel Core i5", "observed_offers": 33, "median_ask_usd": 76.99, "lowest_ask_usd": 59.99, "highest_ask_usd": 469.99, "source_count": 2 }, { "product": "Mac mini", "chip": "Intel Core i7", "observed_offers": 10, "median_ask_usd": 391.47, "lowest_ask_usd": 94.68, "highest_ask_usd": 722.95, "source_count": 1 } ], "conditions": [ { "condition": "open-box", "observed_offers": 1, "median_ask_usd": 382.98, "lowest_ask_usd": 382.98, "highest_ask_usd": 382.98, "source_count": 1 }, { "condition": "refurbished", "observed_offers": 6, "median_ask_usd": 414.5, "lowest_ask_usd": 369.99, "highest_ask_usd": 469.99, "source_count": 2 }, { "condition": "used", "observed_offers": 51, "median_ask_usd": 89.0, "lowest_ask_usd": 59.99, "highest_ask_usd": 722.95, "source_count": 1 } ] } ], "largest_price_cuts": [ { "era": "silicon", "product": "Mac mini", "chip": "M4", "source": "amazon", "from_usd": 1005.21, "to_usd": 740.99, "change_usd": -264.22 }, { "era": "silicon", "product": "Mac mini", "chip": "M2", "source": "ebay", "from_usd": 808.82, "to_usd": 608.82, "change_usd": -200.0 }, { "era": "silicon", "product": "Mac mini", "chip": "M4 Pro", "source": "swappa", "from_usd": 3296.0, "to_usd": 3193.0, "change_usd": -103.0 }, { "era": "silicon", "product": "Mac mini", "chip": "M4", "source": "ebay", "from_usd": 1370.0, "to_usd": 1270.0, "change_usd": -100.0 }, { "era": "silicon", "product": "Mac mini", "chip": "M4 Pro", "source": "ebay", "from_usd": 1599.0, "to_usd": 1499.0, "change_usd": -100.0 } ] } ], "caveats": [ "These are asking prices plus explicit shipping where captured, before sales tax; they are not completed sales.", "Daily offer counts measure listings successfully observed that day, not the entire market.", "Generation medians mix memory and storage configurations.", "A listing can disappear because it sold, was withdrawn or was not successfully recrawled; only explicit availability events are labeled as inventory changes." ] }