The question is only who will be still able to afford mining btc, with a price under 100$ and next Diff raise of 20% or more. I've invested just recently 9000, will get 10 more machines tmorrow and have an iffer for spondos that would cost me like a nice medium priced car. But I actually think of stopping all imediatly, since only a few less and I start oaying on top, not to talk about any ROI...where will this stop???
.... except chinese big farns