Your last paragraph is irrelevant, XBOX had very little BIG selling ip, much less than the Playstation 2.. Madden, Halo, and maybe Call of duty were the big selling ip on the original XBOX.
Now going back to your GEARS OF WAR statement, an amazing ip, the true beginning of "current gen" gaming on XBOX 360. Uncharted a game that was also a new ip, and was considered the best looking game of the generation for quite sometime, sold what? 600K in the U.S? How much did Gears sell? 2,3,4 million? U.S alone?
My point isn't that the PS3 is the looser this gen, it clearly IS sales wise, but my point is that PLAYSTATION 3 games undersell. There is no reason why a game like UNCHARTED 2 should be struggeling to sell in the U.S, when there was a HUGE marketing campaign for it, and every single gaming site gave it astonishingly high reviews *higher than MWF2*
