As great as the Apple trackpads are, if you are reading docs, scrolling through stuff, a touch screen is superior. More precise for text selection. Can’t lose the cursor. Better on my wrists. And complex motions are easier. I wish I could CAD with a touch screen gestures.

It’s different environments too. If I am at my desk with external screens, I want a trackball. I don’t want to reach for the screen. But on the couch, or on the go, I wish I had a touch screen Mac laptop.