I thought it would be nice to have a thread stating what games might or will fetch a big price in the future. I put this in the classic section to avoid the buy the limited edition, don't open it, and sell it on ebay in a month. I am specifically looking for games that are not outrageous now, but probably will be. For example, Snatcher may increase in value, but it is already considered a holy grail of sorts, so I don't count that for the thread.
Futurama (Xbox) - I have slowly been watching this game get more and more expensive. I started watching it last year, it would sell for $20, which I deemed too expensive for an xbox game. However, now it sells for between 35 and 40 very regularly. (not counting stock photo auctions, I ignore those)
If you are collecting for the original xbox... pick up Futurama.
Urban Strike (Game Gear) - This one may or may not go up. The game gear does not have a high ceiling on prices. But the game seems to be extremely rare. Game Gear fans seem to know this and scour ebay for the key price. One just popped up for $20, which is over market value. But it you put it up for a BIN at $10 a collector will buy it within a few views. Considering how few appear on ebay, I could see this getting really high (game gear high is 25-40). If I ran a store, I would slowly collect these at around 10 a pop.