Why did MGS 4 fail to move consoles?

[ymeaga1n]

bobobologna said:
I don't think any game this generation has been a huge system mover (even a juggernaut like Halo 3). People were way too optimistic about the effect MGS4 would have on PS3 sales.

 

I disagree. Halo 3 gave x360 a nice boost.