I think the question is put in the wrong way. It should be put does graphics sell any game system independent on price and performance in key areas.
First I would like to adress what I mean with key areas. The main competion against GameBoy failed in the most important thing, Portability or bad battery life, that is unacepteble when the competion also have more games.
Second: Graphics werses price, most possible if Sony could have put the PS3 in the same price range as the Wii, and have some good games out, it would sell better. Now this means that Graphics sells if it is worth it! Most possible many thinks that 600 USD is to much for a gaiming system, and therfore doesn't buy the PS3.
Buy it and pray to the gods of Sigs: Naznatips!