I can still remember this coin launched at Poloniex and was dumped so bad. Did it started at 1000 btc per 1 zec?
I think it started at 3BTC. But that was more due to the hype generated and the slow start.
There just wasn't enough ZCash to go around. The price dropped pretty quickly after that.
After more ZCash is generated, the price might rise slowly.
Actually, I think it could be the other way round. As more and more Zcash is generated, it will be sold in the exchanges. The miners would only look at monetizing the Zcash generated. Right now, the number of Zcash available is low and that is supporting the price. Once more Zcash comes in, the price could go down slowly.