The price of one bitcoin is arbitrary. $1 is no more crazy than $1 million. It's all crazy. But the question is, what's the supply and what's the demand.
At some point there will be a correction. This velocity can't be maintained forever. But this is also a technology that heavily relies on going viral to become functional (payments/contracts) - and based on real world interactions I think crypto is heading towards an adoption curve that justifies its price.