Why you should buy into the emacs platform - Two Wrongs
I don’t care what editor you use for source code — you can use Quickbasic for all I care — but look, you have to know that Magit exists. Even if you don’t use Emacs in any other capacity, you may want to use it for Magit
He lists Magit, of course, and a bunch of other great reasons you should consider Emacs.
(via Ireal)