Voted might play a non standard character at some point. Like others have said, it depends on the flavor of the campaign if I'd be in it at all; limited to the humanoid races, I'd readily jump at the chance. I personally would have a difficult time being able to "believe in" a campaign that was just like pseudo-medieval Europe except that there are these adventuring bands of trolls, half-dragons, intelligent oozes, and minotaurs wandering about and no one gives them a second glance.
If it was a Planescape/Fey type of world where everyone including the shopkeeper, king, and street urchins were strange and bizarre races I might be interested, depending on how well it was done.