Once bitcoins are declared illegal, all of the statist chickenshits--and there's a lot of them on this forum--will pee their pants and sell out. This will hurt the price for sure. But there will remain a market for bitcoin because a) it's time has come and there will be too much demand and b) there will be a surge of interest in online anonymity, which will become much more common than it is now. (This will be difficult for mobile apps, btw.)