I tried zcash today (well, snowgem) and I find it quite complicated to setup a wallet and addresses.
On the other hand eth based coins are very simple to set up.

but i like the privacy of equihash. and there is one more thing - these are two very different algos and I think it is smart to not keep all eggs in one basket.
if you look at ethash based coins, most of them do exactly same things. only difference is price and websites ;)