I think many people are making assumptions that the current market doesn't support.
First many posters in this thread are assuming that those buying Wii this generation are those that bought PS2 the last generation whereas everything seems to be pointing out to new consumers buying consoles this generation that didn't the last one.
So the fact that the Wii is selling enormous amounts does not necessary mean that the sales of XBox360 and PS3 sales will be that much lower because of it.
Secondly I believe you will have a lot more owners of two consoles this generation than during the previous generation. The reason being that a lot of popular franchises of PS2 or Xbox won't necessary move over to Wii and the players that liked them the previous generation will want to keep playing them and the price point of the Wii allows for a lot of consumers to be able to afford 2 consoles within the next 4 years...(when many compare the Price of Wii now to the price of PS2 8 years ago they forget inflation, the Wii is actually a lot cheaper than the PS2 was when it started, give it a couple years and a Wii price drop and it will be really a mass market item and buying one won't be at the expense of the others consoles).
So in the end yeah I believe the Wii will surpass the PS2, but I believe both the PS3 and Xbox360 will pass 50 millions too...
PS : At this point I woudn't compare the Wii to the PS2, in terms of mass market effect, compares it to the IPod. It's a shinny new toy that everyone has to have....








