Yeah man, what's up with your vague question?What games do you have, what games are you in to?
$50 can go pretty far (especially if stretched ).
Whatever, I'll play along.
Need For Speed Underground 2 - $39.99
HL2 - $39.99
Doom3 - Best Buy $29.99
Far Cry - Fry's $14.99
World of Warcraft - ?
Personally, I would suggest NBA Live 2005. I just got it today. Go to Compusa it's selling for $9.99 (if that's cheap enough for you ). Or you can go to Compusa to get the ad and go to Circuit City and have them price match it. I ended up paying $7.19 . At least in CA, you can try your area though. Either way its below $10, and its so much fun (if you like sports).
ps: Compusa also has - Madden 2005 & FIFA 2005 going for $9.99.