your missing some for the X-box off the top of my head the original dead rising and lost odyssey
it doesnt really matter though as you can see with your list the X-box isnt far behind using your calculations, its really the 3rd party support that has made the PS brand so big the past to gens, just go look at top SW sales for the past two gens, this is where i believe MS has gained a lot or even surpassed sony this gen
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