[thenonsequitur]

Not sure where that argument comes from -- it's certainly not one I've ever made. I personally really prefer the nub over touch pad, but it has nothing to do with not having to move my fingers away from the keyboard.

I mean, given the option of a physical mouse, I will always prefer that over both nub and track pad -- and the physical mouse requires the most movement away from the keyboard (of course, to avoid all three mouse input methods I use keyboard shortcuts when possible).

Anyway, my reasons for preferring the nub are:

* Less movement required on the actual input device. Just a slight tilt of the finger can move the mouse cursor from anywhere to anywhere else.

* Higher accuracy. This one may be subjective, only personal applicable, and/or biased, but I think the nub just makes it so much easier to navigate compared to the touch pad.