I think there is a problem here in that some people seem to think you mean upscale as in resolution, which is what a launch PS3 already does I believe.
Others think you mean to up the graphics entirely, ie make MGS2 look like MGS4 and such, except you would then need to buy them all again.
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So the question is for the latter of those two, how many people are willing to buy an entire library of games again just to have them look nicer.... Personally I don't have much interest in the PS2s library above any other games machine, so no.








