Why is so hard for Wii U sell 20,000,000?

[tak13]

kinisking said:
It's only at 10 mil with Mario, Mario Kart, smash and more. No way it's going to have longer than 5 year life span also. I think 17-18 mil life time

You have it at 20m in your sig!:P:P:P:PP:P