Super Smash Bros. 4: What system will you get it for?

[MDMAlliance]

Mensrea said:
Why would you ever play smash bros on a handheld? I spend most of my time playing with friends, so having it on 3DS is a dumb decision.

How would having it on a handheld prevent you playing it with friends?  Especially if it features a download play?  Not saying it will, but it's possible.