Nope. I got Call of Duty 2, Call of Duty 4, and Black Ops. I skipped all of the others. The online is the big draw and it feels exactly the same, year by year. I probably won't buy another CoD until 2013.
Too many other great games to buy, anyway. In the past two months, I got Gears of War 3, Resident Evil 4, Starfox 64 3d, Gunstringer, Dance Central 2, Batman Arkham City, and Uncharted 3. I still have to get WWE 12, Zelda, Saints Row 3, Mario 3D Land, and Mario Kart 7. No need for CoD after all of that!