[pmcginn]

I use nano because I don't have to remember anything to use it. If you put me in front of nano I can open a config file, go to the line I need, edit in something, save it, and exit without knowing a single thing about nano. If you put me in front of emacs or vi I have absolutely no idea what I'm looking at.

I am sure vi and emacs are much powerful than nano, but the time I'd have to invest in learning them would outweigh the benefit. I just don't edit text files enough for it to pay off.