I also need advice. I already have 2x 3 1080 ti.  I can get 1080 ti for 700euro, and 1060 6gb for 275€. I plan to mine eth until difficult dont jump,  then maybe ubiq or something. 1080 ti for zcash or something. What is better 1070 8gb 420€ or 1060 6gb 275€. I think 6 1060 6gb with 750w psu is rly good deal.