Or run Emacs the way it was meant to be used: in a terminal window. I've been doing that for, oh, about a decade now and haven't seen much cause to switch.
It was probably "meant to be used" (or at least originally written) on a physical terminal rather than a terminal emulator.
Nothing wrong with moving with the times. A graphical emacs session does offer plenty of benefits, not least having less hassle with keybindings, and much greater flexibility with fonts and colours.
That's what I did when I used to us OS X. Then I realized, if I'm just using a terminal anyway, I might as well actually use linux and get a real package manager back.
(Edit: I do miss spotlight. But not as much as I missed apt+dpkg.)
I use an in-terminal editor all the time on OSX, what I like about OSX is that I get the Sexy UI with a lot of the things I have come to love in Linux(at least in a terminal, where I spend much of my time anyway)
OK. I do not use it myself. But my fiancee has a Mac and seems quite happy with Aquamacs. (She used Emacs on Ubuntu before for some time, to do LaTeX with.)