First Edition of “Harry Potter and the Sorcerer’s Stone”: $6,500
First copies of the U.S. version of J.K. Rowling’s story that set off the Harry Potter phenomenon were originally released in 1998 and sold for up to $6,500. Score one for Gryffindor if you find a signed copy that adds to the value, such as this one that sells for $15,000.
Mario Kart 64: $400+
One of the most beloved Nintendo games (we all wanted to be Yoshi) will sell for around $460-$675 now. A game that’s worth a lot of money and has taught us how to drive? Not too shabby.