While I like the concept, the prices are very high. With a 1070 rig (I don't know the hashrate you are guaranteeing with those... I'll guesstimate 32Mh/s) it would take you a long time to pay off that rig. Considering difficulty rises I'd say it would take you 24 months to break even. You'd have to be gambling that ETH will go up in its worth quite a bit to make it worth it at these advertised prices.
Hello,
the price is high because all components is hard to get and also all cards went up like crazy. Also i do belive now is the roi around 12 months. But you dont take in cosideration folowing: 1. The hardware is yours so till its in warranty (usually 3 years) it has value and the value is not 0. 2. The price of ETH or ETC can go up... 3. you can move to other currency like Zcash or some new commers
Best regards
Invictus Mining Team