You know, I have asked the same question myself.
CoD4- Innovative for the series, updates to virtually every aspect of the game. ( Personally, I didn't like it)
WaW- Mild updates, but noticable addition of Nazi Zombies.
MW2- Mild updates to CoD4
CoDBlkOps- Mild upgrades to CoD4, noticable addition of expanding Nazi Zombies
MW3- Not yet released, but all of evidence points to mild updates, and an extra charge for certain game aspects.
Unless you like Nazi Zombies, ( like me) there is virtually no reason to have bought any of the other games, once you have CoD4.
Sure the other games bring new classes, a few new guns, and new maps, but that's it. You are shooting the same anonymous online player in the same way as before.
It's a shooter, and not a very varied one at that. Halo came with updates throughout it's series run, but with the exception of the notably awful ODST, and the swan song that is Reach, the rest of the games are fairly interchangable.
Posts above have mentioned the " but my friends are all playing the new version" as the reason why people buy the same game over and over again. But, that doesn't hold, because then why are their friends buying it?
It's not the game, it's not the friends, it's the fact that it's "new".
CoD4- Innovative for the series, updates to virtually every aspect of the game. ( Personally, I didn't like it)
WaW- Mild updates, but noticable addition of Nazi Zombies.
MW2- Mild updates to CoD4
CoDBlkOps- Mild upgrades to CoD4, noticable addition of expanding Nazi Zombies
MW3- Not yet released, but all of evidence points to mild updates, and an extra charge for certain game aspects.
Unless you like Nazi Zombies, ( like me) there is virtually no reason to have bought any of the other games, once you have CoD4.
Sure the other games bring new classes, a few new guns, and new maps, but that's it. You are shooting the same anonymous online player in the same way as before.
It's a shooter, and not a very varied one at that. Halo came with updates throughout it's series run, but with the exception of the notably awful ODST, and the swan song that is Reach, the rest of the games are fairly interchangable.
Posts above have mentioned the " but my friends are all playing the new version" as the reason why people buy the same game over and over again. But, that doesn't hold, because then why are their friends buying it?
It's not the game, it's not the friends, it's the fact that it's "new".