Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH
May I remind you of something called "HALVING" before going crazy on a purchasing spree?
That is a million years away. By the time halving arrives, each and every S7 will have long been tossed in the bin. Miner lifetime is far shorter than that.
Stop jerking off your mind.
10 months is not really an accurate equivalent to a million years. Regardless, you are actually adding to my own point: NO ROI in them!