There is one other benefit of learning emacs. Emacs has been integrated into unix operating systems in a surprising number of ways. For example, you can use basic emacs commands in xterm. Heck in OS X, you can use basic emacs stuff just about everywhere. Plus, you can also set a lot of IDEs (like Visual Studio or Eclipse) to use emacs-like commands. So I'd say that it's a good thing to be familiar with the basics of emacs even if you don't use it that much.
One other thing to point out: emacs is a godsend on laptops. Especially Apple laptops. You don't need to worry what god-awful location the home key is in because you just need C-a.
