The reason I stopped buying and caring about CoD is simply because they don't give a fuck about PC features like dedicated servers and modtools and I believe each sale of CoD only reinforces publishers to ditch more and more PC features. This is why I haven't bought a CoD title since CoD5:WaW.
Had BO2 had dedicated server files (not like BO1 which was rent-a-server without any control) and real modtools (not the shit they called modtools in BO1) and if it was $40 I would have bought it. As it is, I refuse to support games that fuck up PC gaming and all the others should be ashamed of supporting such games. Don't come whining when more and more mainstream games ditch away more and more PC features.
And that's the reason I don't buy CoD anymore and hate it. Not because the game is fun or not but because it takes a hot steaming dump on PC gaming features since MW2 and I can't honestly support publishers and games that do that.