Why I don't like the Joy-Cons

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fleischr said:
Joycons look to be about 4" wide. SNES controller was about 5" wide. The original Gameboy was about 3.8" wide.

Which begs the question - was the SNES controller or Gameboy that uncomfortable to hold? Not perfect - but not the worst from what I remember. Certainly bearable when the game is really good...

Yes, but the face buttons an d-pad were on the side, not in the center.  Try holding an NES controller and hold either your left hand or right hand in the center rather than the edge, and press buttons.  This is the bigger problem than the size.

And no N64 is not a counter example.  That had a center grip.

Next take a Xbone or PS4 and try controlling as if stick were directly under the buttons.  That shows the problems with the grip controller.

It's not hard to test the comfort in either scenario.

So joy-cons and grip controller will both be unsatisfactory control options, so again, what is the point?  I guess stand alone tablet could be useful if it is fully functional.  I have my doubts Nintendo could pull of a workable UI.  

Also, Wii mote style functionality could be useful as well.  I'd be interested to understand the mechanics of how that would work on go and home (what replaces the sensor bar in both cases)?