A copy of Super Mario Bros. bought as a Christmas gift in 1986 was reportedly placed in a desk drawer and forgotten for decades. When it resurfaced, the sealed Nintendo cartridge was professionally graded and eventually sold for $660,000 at Heritage Auctions in April 2021. A separate sealed copy of the game later reached $2 million in a private sale in 2021, creating a frequently repeated but misleading version of the story that combines two different cartridges. The story ultimately shows how sealed video games became serious collectibles.
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