Can someone with a mathematical gift bigger than mine make a probable estimation under which conditions the S7s would become unprofitable?
As of now, I started to buy some S5s again.
I think S7 becoming unprofitable is a long, long way to go. This should not be your primarily concern. Your primarily concern should be more S7 getting into the market and crushing the price way below the one you have purchased your S7. In essence you would be mining just to cover your losses. Since 500 units s about to hit the shelf, I m sure the price ll go down a bit.