I feel like you do about it, Elli. I think it's pretty tacky to vote for yourself. But you're right, it would suck to lose by one vote.
Personally, I didn't vote for myself and I got eliminated. Maybe my vote could have saved me, maybe not. But personally, I'd rather lose something with a clear conscious than win by voting for myself.
Actually, I might vote for myself in something IF I truly thought I deserved it.