I believe the fair price for Zcash now is $15 because nobody is using it for any transaction and no dark market has shown interest in it, those speculators I will leave them to have their days
Already many people are keep mining ZEC and being dumped by many people, it will not happen in coming days because block size is keep increasing so the chances of getting coins will be more tough for the people who are mining. But many people are completely not satisfied with zcash the way it is now. In the beginning many people have lot of hope on it. Many people taught that it may be the next bitcoin, but could retain it's position in the market.