Let those who believe something you don't understand believe. Atheism is just another religion. However, there are plenty of threads around where you can discuss such things. So lets not shit all over this one too.
I do hope everyone knows the difference between atheism and agnostic.
Apparently not. There is a very good comparison: Atheism is a religion in the same way as NOT collecting stamps is a hobby.
Now that it's cleared, back to topic: I'd say 200 as a sustainable price (as opposed to bubble top) will first come when we have enough BTC commerce, give it 3 or 4 years.