The main big 3 coins (Bitcoin, Ethereum, litecoin) difficulty is getting so great that you almost need a warehouse to build enough rigs for profitability.
If that's the case, where does it leave the smaller miners, the average person with an average PC, tablet, smartphone or Mac who wants a piece of the mining action?
With the recent months showing drops in coin values, investors who are not looking at the long term started to abandon ship. Mainly because they had invested so much into hardware that the cost of hydro vs EXPECTED quick payout did not equate.
Along comes the smarter investor, building their machines according to a longer term plan rather than a "get rich quick" scheme.
Cyroptonote coins (Monero, Bytecoin, Monerov, intensecoin, Graft...) to name a few can easily be mined with entry level hardware!
This is the direction I would recommend going forward and most important is looking at the longer term (2-4 years) holding your coins in their respective wallets for the long term payout.