Blockbuster's second Video Game Championship contest, for SNES and Genesis, ran nationwide in 1995. Stores had to destroy the cartridges after the contest. Someone made 100 reproductions to help completionists fill a gap in their collect. About 40 are left.
It didn't come close to breaking records set recently by other rare titles, but NBA 2-Ball, a freebie PSOne disc given out at the 1998 NBA All-Star game, probably set a mark for demos.
At the 1998 NBA All-Star Game, fans received discs with the demo for a PlayStation game called NBA 2-Ball. The game was pretty bad - possibly defective - but it's extremely rare. So a surviving copy may be extremely valuable.
The title of "Holy Grail of Video Games" changes almost monthly, or whenever an extremely rare specimen hits eBay. The latest claimant: a weird-shaped Atari 2600 cart by the name of Air Raid.
Remember the mom who sold an NES for $13,000 because it happened to include the ultra-rare Stadium Events? Well, a factory-sealed copy is now on eBay, and with eight days to go bidding is above $16,000.
A mom in North Carolina listed an NES and five carts on eBay last week for $9.99. Final winning bid: $13,105. One of the games in the lot happened to be the ultra-rare Stadium Events, in its original box.