Buy it if you're a fan of it. You'll find the majority of the people in this forum (like 3 people lol) will detest it. The guy above me is one of those few. Try not to listen to these...individuals. Their opinions are EXTREMELY one-sided.
I just go on every now n' then to get a few BR kills and stuff, nothin much. Oh and I'll play the campaign through as well.
hm. On second thought, after having read your OP, I don't think it'd be worth it for you.
[Edited on 04.12.2011 10:12 PM PDT]