Bored - Need a new game (bargain rack)

So, I am really, REALLY bored.  Was thinking of hitting up Best Buy & picking up an older game, something in the $20-30 range.  I haven't bought a new game in awhile.  I was thinking of something RPG'ish, though FPS or Racing would be ok too.  Any suggestions?

Elder Scrolls Morrowind is $20 and has over 200 hours of gameplay.