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Our algorithm tracks 48 verified sales from eBay and other marketplaces. We don't use asking prices, only what buyers actually pay.
We automatically exclude damaged items, reproductions, and extreme outliers to ensure the average is representative of the true market value.
The retro market moves fast. Our database refreshes every day to capture the latest trends and shifts in collector demand.
Confidence Score: High • Based on 48 verified transactions
Currently, the value of a Complete In Box (CIB) copy of American Challenge: A Sailing Simulation is estimated around N/A. For collectors looking for a Loose copy, transactions usually happen around N/A. The price gap suggests that the box is relatively common.
Released in 1986 on Apple II, this title is an interesting piece for any Apple II collector. The price is currently attractive compared to its historical average.
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Our algorithm tracks 48 verified sales from eBay and other marketplaces. We don't use asking prices, only what buyers actually pay.
We automatically exclude damaged items, reproductions, and extreme outliers to ensure the average is representative of the true market value.
The retro market moves fast. Our database refreshes every day to capture the latest trends and shifts in collector demand.
Confidence Score: High • Based on 48 verified transactions