which is not that better than 280 sol in zcash with a single 1060 that consume 100 watt
Yeah considering that ethereum might not me mineable in the future, the rx 470 will probably never ROI. Although zcash price is also not looking that good.
This is of course totally wrong. There is just too much AMD cards on the market and most of them are mining ethereum. Once it goes POS people will redirect mining to other coins and they will immediatelly become unprofitable. Only the people with lowest electricity cost or private miners will survive. All of the other miners will have to sell the cards.