Nintendo destroyed its 1991 Campus Challenge cartridges; one surfaced at a 2006 garage sale, sold for $20,100

In an astounding find, video game enthusiast Rob Walters stumbled upon a rare Nintendo Campus Challenge cartridge at a garage sale back in 2006. This unique cartridge was made for a competitive gaming event in 1991 and hosted modified versions of beloved titles, allowing players to achieve high scores during tournaments.