Because it would seem that if, for whatever reason, I was mistakenly accused and convicted of something, I would basically have no way of continuing my life.

Also, I refuse to support a local (bleh, state, whatever) government with taxes just so they can ignore my vote. I'd rather live in a state where my vote goes to someone who supports my gripes. And yes, I recognize that that sucks, and that if more people moved to places where they could change things with their vote, things would actually get changed. But I'm one person, and me moving wouldn't solve anything.