i think with the difficulty continuously increasing, it is not profitable to mine considering the expensive hardware and cost of cooling them and electricity, but if you can hold the mining income in eth or btc for may be couple of years then it can pay you big time, for everyday sellers i do not see any attraction in mining at the moment.
Electricity is the biggest problem in mining field. Even if we want to on mining 5 cards with the GPU set up. Atleast we need to spare the 4k USD and even more mate. For that big amount returns will not be bigger.
This is why miners does not expect the bitcoin and alts value dumped when there is peak value in the market.
Please invest on the good mining cards which can give more hashes in the market.