Gran Turismo 5 to sell over 15 Million LTD or only over 10?

[Ail]

ZorroX said:
@Ail, PS3 won`t stop selling at 27M. By the end of 2012 it will probably reach atleast 75M.
And 15M is only 20% of attach rate.
And GT5 is biggest PlayStation franchise.

+Now GT5 will be first full GT game with Online mode, which i think will also be huge selling point compared to previous games.
Not just amazing graphics, but also online mode.

@samus aran rules, PS3 sold only around 4M in Japan, that isn`t a big userbase,
but i expect it to reach atleast 8M by the end of 2012.

True the user base will increase.

But even a game with crazy legs will still realize 80%+ of its sales in its first year and GT5 will not sell 13 millions units the first year...