I probably split my time 50% between the MacBook trackpad and my Logitech mouse. The Mac track pads really are the equal of any mouse I've ever used. It is unlike any other track pad on the market.

I know that sounds like total Apple worshiping BS, but it is true. I have no idea why no one else manages to make a track pad like the Apple one.

I still love the Logitech mouse because of the software controlled clutch on the scroll wheel, but the track pad is just as good it its own way.

I'm not convinced that a track pad will be any better than the mouse for wrist pain. I resolved my wrist pain issues by swapping to a desk at the right height with a curved inset to sit at. Not really had any pain in the ten years since I got the desk. And my Aeron completely eliminated my back pain. Correct furniture ftw.