I don't think people are actually considering the math when saying 100 million.
The 3DS, even if it has ZERO decline for the next 3 years straight (so 13 million/year) through the end of 2017 still wouldn't have enough for 100 million. That only gets you to about 92 million, and that's being *extremely* optimistic.
And its already showing signs of decline, tremendous decline in Japan where YTD sales this year are half of last year.







