How much will Mario Kart 8 & Smash Bros U sell?

[AZWification]

Zero999 said:

AZWification said:

         Mario Kart 8 will do around 10 million and Smash Bros 4 will do around 8 million.. Having a 3DS version of Smash 4 is a stupid idea and I wonder what the heck was Nintendo thinking  when they decided to use this idea.

the same thing they were thinking when they decided to make mario kart for portables and home consoles.

 The portable and console MK games  never  come out  in  the  same year.