Hmmm... I suppose a discussion as to the "conservativeness" of Bush could deserve a separate thread.
I'd actually be interested in what rcarr328 might think about this issue specifically. I've heard several self-described Republicans state much the same thing and that they have maintained Republican status because of conservative economic strategy. These same Republicans say the same about Bush, that he doesn't represent the conservative economic idea that they desire.
Personally, I think that this is a symptom of the neo-conservative movement within the GOP. Corporate domination is the name of that game.