I'm not sure what to think to be honest.
MW2 sold insanely well compared to MW1.
Black Ops I thought wouldn't sell as well as MW2 cause it didn't have "Modern Warfare" in the title, yet everyone seems to gobble up "Call of Duty" despite the earlier games not doing much in terms of sales (or at least compared to the newer ones). Right now it looks like the sales will do nothing but go up - so I expect Modern Warfare 3/the next call of duty to sell even more, and the next game to do the same and so on.
It's not only going to have to take a game to play better - but advertise better and get the massive word of mouth. Everyone on my friends list has black ops and everyone has spread the word about the game... and yeah It's pretty damn casual to.
Will sales eventually drop? It really depends on Activision - will they go pay to play? Will they change nothing in the way of future games and turn into Dynasty Warriors? It's really all in Activision's hands.
It's just that simple.
