I have a touchscreen laptop. I don't remember the last time I touched the display.
It's fine. It's there, but I don't really use it. It doesn't bother me.
An entire generation grew up with touch interfaces. They are the intended user base for a touchscreen Mac. They will certainly use it more than I'll ever do.
But what really blows my mind is people being mad because Apple decided to put a touchscreen on a Mac.
DUDE. JUST. DON'T. BUY. IT!