There are lots of games for 360, a bunch of good ones used or new for $39.99 too!
(See, not a Nintendo fanboy, I came in here and added to the Xbox thread.)
Crackdown $39.99
Project Sylpheed $39.99
DDR $39.99
DOAX2 $29.99
Saints Row $29.99
Battlefield 2 $29.99
Burnout Rev. $29.99
DOA4 $29.99
Dead Risin $29.99
Fear $29.99
SC:Double Agent $29.99
Fight Night R3 $29.99
Viva Pinata $29.99
Godfather $29.99
I would cite regulation, but I know you will simply ignore it.