Tyranny and Apathy

Utah's electoral votes are pretty much set already, right? I mean, no matter what I do, it seems, they're going to vote for Bush. What, then, is my motivation for voting? Everyone I talk to seems to either not care who wins or they think that their vote is impotent to make a difference. I hate the idea of not caring who wins, because it seems like that takes away from my right to self-governance, but if my vote doesn't matter, then maybe that right has already been taken away.