Yea, but would the Wii have sold 100 million if it was as powerful as the PS360? Could have, but probably not. $250 is one of the main factors why the Wii was such a hot item several years ago.
I think it would have sold less like maybe around 80-90 million but I think the main reason it got where it did was because Nintendo got the casual audience and I think the casual audience would still buy it at a higher price but maybe I'm wrong not sure