Being able to use some customizable editor allows you to do nifty things, but emacs in particular isn't necessarily the Very Best One Possible. I'm a SlickEdit user myself, I do all the same weird half-automated stuff with it that emacs is famous for. I've seen people do similar things with vi and various Windows-based editors.
So, yeah, socket sets good, but arguing that Craftsman makes the One True Socket Set is kind of dumb.
