I've been boycotting Activision for a while.
I, personally, will not buy any game developed or published by Activision. I do not like their execution of their business, and I do not like their CEO. They need to clean up their act before I can consider purchasing one of their products. This may cause me to miss out on some good games, but that's my loss.
However, I understand that some people don't care. They want to enjoy their Call of Duty's, and that's perfectly fine. I truly wish no ill towards anyone who plays Activision. Enjoy their games, I know I won't, and I say that in the most sincere way I can.