So I know people always bang on about mechanical keyboards, and I've yet to try one (though I know I'll be choosing cherry MX browns), but honestly, for media and gaming, I see more functionality with membrane keyboards (the rubber dome ones, like the roccat isku or the Microsoft sidewinder series), and they're a hell of a lot cheaper.
So based on your opinion, with not just gaming use in mind, what should I be choosing, a dome keyboard, or a mechanical one that costs twice as much?