Just here to remind 1 sure thing......people that won in the past are those who mined in moderate way - near at loss and not who spread terahashes only when $/BTC rose.
Mining isn't done to be always a sure gain, and depending on price fluctuations (f.ex. 50-100$/btc) , expecting a scenario where big farms could be forced to slow down, is not so crazy. Of course small miners will be in same (or worste) situation, but I remind you that operative costs are much more sustainable for them than the farms.
Farms are taking a high risk, very difficult to estimate.
One of my points described exactly as I think the big companies should look at.
Or here is another way Sep 25 , 2014 Diff = 34,661 Nov 4 , 2014 Diff = 39,500 that is after this evening's jump this will be 3 jumps over 40 days with the avg of
about 4.5%.
Those numbers will make them rich with less risk. They will also allow the business to last longer.
So the best interests for the big companies is less then 5% growth.
My assumptions are simple :
1) btc price is at the 300-350 usd level.
2) growth needs to be under 5%