Stadium Events (1987)
Original cost: $30
One of the hottest stories to rock the video game collecting community this year was the $41,300 sale of a sealed copy of Stadium Events, a Nintendo Entertainment System game. The seller found this gem among a pile of old video games that he was going to donate to Goodwill.
That news came just a few weeks after a woman put up an old Nintendo system on eBay with a few games. Much to her surprise, the auction closed at $13,105 because one of those games happened to be Stadium Events in the original cardboard box. According to the guide Video Game PriceCharts.com (which also gives tips on how to tell the versions apart), the U.S. version is valued between $1000 and $13,000, and the less-rare European release commands between $100 and $1000.