I would not have bought RX480s, they're not really more powerful than the RX470s.
That said, I think ZEC will go back up once they fix their z wallet bug. Also, it's still more profitable to mine than ETH for the moment...
no, it is not.
Depends on your specific rigs and specific energy costs.
For *ME* right now ETH is more profitable - but it's close enough that could change tomorrow.
ETH last announcement I saw was middle of next year for POS - though 2 GB cards will get "DAG size killed" sometime sooner.
Yeah if you wanted to make the 'long bet' at some point below then ....assuming difficulty allows it for ZEC you mine like hell and hold
then when the ETH and ETC go POS coin...all those GPU ETH or ETC miners go to ZEC mining. Either a good thing or a tank at that point
balls to wish ratio on this is large...no clue...just saying