Speaking of, I noticed The Orange Box had a price raise at Gamestop, up to about $35 now (though you can get it cheaper on Ebay of course). I'd say that would probably retain it's value? Wish I would've kept my copy. >.<;
Pertaining to the JRPGs, Lost Odyssey and Resonance of Fate, perhaps? I've heard both are quite good. Need to pick up a copy of each sometime.