So, the point of the last sentences in this thread are that, as I said earlier, you should invest in 20-50 last-hash miners to ROI. Or in the best ways you can get 50% ROI instead. No matter what cost of power you have, stupid TH that will drive you as a Russian tank to your ROI.
But we all know that a medal has two sides. On the other side you could get only 50% ROI in a very very very good case. Even if you are going to sell them on ebay.
Mining is a such complecated game like chess, where on one hand are the ASIC (now ASIC yes, not GPU) manufacters (who are mining for the full mf power in their plants) and on the other are your strategy how to buy cheap (BTC or ASIC, no matter) and sell with some expensive interest.
Btw, I'm watching for the interesting cheap proposals miners in ebay and ali almost every day. Yeah, I'm a quite low now in a budget, but I can afford to buy some "hexes" 30Gh+ for 50-60$ + 15-20 delivery costs. Why??? I'm never ROI with them, because the delivery is so long to Russia from US, but I'm funky loving that small machines. May be I can buy a full computer instead to mine X11, X13 or even Scryot-N?.. Why not? Credit organisations will make their ROI faster ha-ha
I'd love too, but I have a free power cord in my room, I'm not interested in computer! I like these machines which are blinking with ssh access leds power-cord-webs.
So, everyone chooses what his heart whants this time. But brain understands that this is wrong. That's like smoking may be...
So, let there be punk-rock and BTC! Oi!