Why people say GeOW2 will be a system seller?

[thekitchensink]

dbot said:

mrstickball said:
dbot -

It means that if Playstation 3 fans argue, and assume that lesser-selling titles such as Resistance 2 and Killzone 2 can move consoles, then why not a game that is much better rated, and better selling? Gears 1 outsold Resistance and Killzone combined.

mrstickball - It seems like a defensive comment to a fair question.  The op is curious as to why people think the GeoW2 will push consoles.  It has nothing to do with Sony, Resistance 2, or Killzone 2. 

I think Gears of War 2 will be a great game that will sell very well, but I don't see it moving a lot of hardware for reasons previously stated.  It is a sequel to a game already released on the 360 and Gears 1/Halo 3 have already brought in the FPS crowd.  That being said, I don't see KZ2 or Resistance 2 selling any hardware either.  But I expect both to be good games.

I didn't mean for my comment to sound defensive--but a lot of people DO tout Resistance 2 and Killzone 2 as system-sellers.  As the original Gears was much higher-rated and sold much better than the prequels to either of those games, if they have a chance to sell systems, then Gears 2 has a much higher one.