I never gave Emacs a try. Maybe I launched it on rare occasions, but I
  didn't use it for more than a couple of seconds.

  I'm not exactly sure why. Probably because vi is "advertised" as being
  simpler  and smaller. To be fair, though, I usually use Vim and you'll
  have a hard time arguing that this program really is "simple".

  Anyway, I ended up using vi and Vim for virtually  any  text  editing.
  I'm not sure if that's good. Maybe I should learn a new text editor to
  broaden my horizon. I'm writing these lines in Emacs right now.

  However, there's one really good reason to be familiar with  vi:  It's
  available on virtually any UNIX and UNIX-like system. That's important
  because I have to deal with those on a daily basis, ranging  from  old
  FreeBSD  systems  to embedded systems. Vi is always there. Vim is not,
  of course, but I'm still able to efficiently edit files using  vi  and
  that's a nice thing.