Claiming eth is the most profitable shows a lack of understanding of the ecosystem overall. I have been mining ZEC for the last 14 months over eth because I run all Nvidia stuff and I dont pay for power. Profitability is a case by case thing depending on a number of factors.
You are flat out wrong claiming its the most profitable to mine on Nvidia hardware.
E.G. - GTX 1070 @ 475 sols = $61/mo
GTX 1070 @ 26 mh = $50/mo
How are you getting $61/mo? Are you using a calculator or are you using previous data that you have acquired from mining?