In the same way Allied Assault (Made by the same crew that created the original COD) set the tone for games to rip off for the next few years (WW2 shooters) MW1 did the same thing to the FPS genre and had everyone trying to base there games off 'Modern Shooters' and 'blame the Russians' shooters., next up is future shooters (not a joke, look at the next few 'big' shooters coming out), the trends of a genre go in full circles, much like 'great series' do as well.WHAT THE HELL HAPPENED TO THIS ONCE GREAT SERIES!
Game 1 - Amazing concept! Amazing Game, WOW!
Game 2 - Wow how did they manage to add more to the game but somehow feel
like they bettered the first, THIS IS AMAZING!
Game 3 - Okay they added some more refinements, but everything just feels 'bigger' still a great game, but starting to feel like more of the same old thing.
Games 4-10 with annual installments - Bleeding the series dry to get money off the famboys and those that hope they can somehow get back to there former glory, eventually leading to the death of a franchise that was once a powerhouse!
WILD CARD GAME 11 / GAME1 - Remake / Reboot same game mechanics / idea in a new settings.
Examples: Medal of Honor, Tony Hawk, Call of Duty, Guitar Hero, Prince of Persia, Assasins Creed is starting to do it, etc ,etc
Activision are the kings of driving games into the ground.
Everyone tries to mimic the current 'big game' to the point where people don't want that style of game anymore, Pacman clones, space invaders clones, mario clones, ww2 shooters, modern shooters, zombie games.
Long and pointless rant, enjoy.
PS: I would never try to measure your cock by talking about how many games you own, never goes down well.

