Gotta say, something like a King headset would be pretty close to the bottom of my parts list these days. With integratedl headsets I really don't think there's as much different in quality as there used to be, as you're essentially just buying a bearing and race.
Beyond that, with headset standards the way they are, there's not much point in having a headet that'll outlast your frame because your next frame will probably need a different headset anyway.