After seeing this article on Reddit today:
http://www.thecoinsman.com/2014/08/bitcoin/inside-chinese-bitcoin-mine/This mining company is making roughly $170000 a month while paying out $60000 a month for electricity + 3 employees + hardware costs.
3 Chinese employees probably cost less than $3k a month total.
And while everyone assumes that hardware is expensive, I'm willing to bet that the owner probably has a chip making factory somewhere or is getting them from a fellow chinese man for dirt cheap.
I would be surprised if this facility was clearing more than $80k month in profit after total costs.
There's a reason other than insanity that the hashrate still climbs exponentially.