@heruamon
Well yes sales wise GTA IV, and Halo 3 wont be cought by MGS4, that is true, as for gaming experience I can say MGS4 is by far a greater experience than both those games "combined"imo.
As for LBP, I wouldnt say its a flop considerirng its sales are increasing from last week, and its selling 100k+ a week, if this trend were to continue, it should hit 2 million maybe 3 by the end of the year imo.