There is very little correlation between the PS2 sales and the PS3 sales, between the Xbox sales and the Xbox 360 sales. There are no "Playstation users" with tatooed barcodes on their heads who will automatically buy the next Playstation, and no "base". The PS2 had 100+ millions installed base because it was a) cheap and had b) tons of games, not because of the PS1 - none of which the PS3 can boast.
4
There is very little correlation between the PS2 sales and the PS3 sales, between the Xbox sales and the Xbox 360 sales. There are no "Playstation users" with tatooed barcodes on their heads who will automatically buy the next Playstation, and no "base". The PS2 had 100+ millions installed base because it was a) cheap and had b) tons of games, not because of the PS1 - none of which the PS3 can boast.