Yea, there's a bunch of people who only play COD like those people who only play sports games (a friend of mine was in a pro CODMW league). I stopped playing COD when it went modern, but I think I'll give it a shot again when I get to it in my achievement hunting list. I was impressed by the trailers for Black Ops a little while ago.
Funny how the public has really taken to the MW games. Does everyone want to be in the military or something or is it just that lots of people like present day realism? That's not my thing at all.