I've been using various models of Logitech's thumb-operated track balls since 1998. Currently using the M570.
I didn't mind the using the trackpoint stick on a few laptops, it was vastly superior to almost all trackpads. And as far as trackpads go, the only one I didn't mind using was the one on my Unibody MBP.
"My job isn't to offer help in the way that you mean." - Boogiepop