Zcash price has been increased too much after it got listed in poloniex and maybe it is overvalued but we had similar thoughts about ethereum too when it got listed in the exchanges, zcash gradually is dropping these days so I am afraid it will crash soon.
The only alt which have a price over 3k btc at the first place in poloniex. At the time you have made your post Zcash was already crash. I don't think ETH has had the big hype like ZEC before. But seriously ZEC can be including on the Guinness Crypto world records.