What item do you own that has an unexpectedly high value?
This could be something that you bought for a higher price than what most people would guess based on the item, or it could be something you bought for a normal price that has gained significant value as time has gone on.
What made me think of this question is a LEGO minifigure I got with my "The Hobbit: An Unexpected Journey" disc. It is Bilbo Baggins in a blue coat that was apparently only sold in that movie box only at Target stores. Even considering the exclusivity, I would have guessed maybe $10-20 for such a tiny piece of plastic, but there are sold listings on eBay from $80 to $225. I could possibly even get towards the higher end of that number since I still have everything in the original box in good condition. It's not worth a ton compared to some other items people may own, but I think most people would not expect nearly that amount.
It's always cool to have some older games. I kept a few of my Xbox 360 games even though I probably won't play them again. I know someone that also has a collection of expensive PC games from the 90s and early 00s, and they're always cool to look at.
If any of the old PC games are MMORPG's, they don't have to collect dust. I know first-hand many are still populated with players.
I think most are single-player RPGs or strategy games, but I'll definitely pass along the info.