I do 90% of my work on a Chromebook/ChromeOS desktop, but I can't program on it, and yet I don't want to suffer trying to put Linux on it, so basically anyone who doesn't want to install Linux on their computer :)
Actually, Crouton is easy to install, and you run it from inside a ChromeOS window. I program on mine all the time. Most Chromebooks come with limited RAM and hard drive (mine is 2 GB/16 GB) so I could see using something like this if that's a constraint. Unfortunately the pricing is a bit steep (I see you've addressed that above).