[quote name='crystalklear64']Next non-arcade game I buy will probably be GTA IV, and I don't think he has it.
Current order is:
GTA IV
Lost Planet
Kameo
Other Stuff
And by the time I beat GTA, maybe there will be some hip new game out I want.
RB2 too expensive unless I find a hassle free way to do one of those free 360 game sites.
I don't know much about the arcade games other than Castle Crashers.
What quality single player games with a reasonable amount of play time are there?[/QUOTE]
(a) I may be selling my copy of GTAIV soon... you want first crack at it?
(b) depends on what you want. XBLA is full of awesome shooters - Geometry Wars (400), Geometry Wars 2 (800), Ikaruga (800). There's also the awesome of Pacman CE (800), Castlevania: SotN (800). Castle Crashers (1200), but you mentioned that. Commando 3: WotB (800) is pretty decent as well as Alien Hominid (800) for newer games with an old school feel (Ikari Warriors and Contra, respectively).