I just turn off trackpads, I'm not interested in that kind of input device, and any space dedicated to one is wasted to me. I use nibs exclusively (which essentially restricts me to Thinkpads).
My arms rest on the body, the last thing I want is for it to be a material that leeches heat out of my body or that is likely to react with my hands' sweat and oils.
> and the annoying OS
"...It's just a flesh wound..."
That alone is already very compelling for me (no noise, no fan to wear out). Then on top of that it has:
* Amazing battery life
* Great performance
* The best trackpad in the world
* Bright, crisp screen
The only downsides are the lack of upgradability and the annoying OS, but at least it's UNIX.