I would buy MW3, but seriously, and I'm not just being a hater: I've been so disappointed with the past 3 CoD's that I'd rather just save my $60 for a new mic or something.
It would come in handy in Battlefield where teamwork actually matters.
Good point. MW2 was more of a dissapointment for PC, I actually found the console version quite entertaining. aIW saved CoD's ass in that situation. Black Ops was a total shit game, I didn't really enjoy it. MW3 will still sell millions though, just because that's the name they have made for themselves.