lol at poll results. I think people say 20+ because they want it to be 20+ not because they think it will actually be 20+
I'm sure there's an element of that going on - but I would answer that myself anyway based on the last 12 month trend, the fact that it's already $16 or more, and scarcity of coins/effort of mining is going up.
On the basis of the above, I'd be hard pressed to see it not surpassing $20, and probably fairly soon!