I love this game and it is still my go to game. I have about 5 or 6 other guys that I play with from here that play it pretty regularly as well. One guy I know picked it up pretty cheap, for under 30 on amazon, so its out there for not very much. No $10 VIP Pass to buy either if you get it used.
Personally, I don't know a whole lot of people that are excited about MW3 yet. Supposedly when it gets closer to the release date, they will start releasing videos of the game on the new engine, unlike Battlefield 3 that has already done that. Its probably going to be the same ol COD but on a new engine. Being the COD fan that I am, I am not excited at all about MW3. For now, I'll be sticking with Black Ops. Besides, I LOVE zombies and I doubt MW3 will have it.