this time to mine bitcoin requires no small cost, but it is also the mining bitcoin mining alone makes the cost of treatment is very expensive, plus the cost of electricity to be paid to mine bitcoin, I suggest that you change your mine into a cloud of mining so that the the relatively low cost you will get large amounts of bitcoin, besides that you do not require maintenance costs, simply by investing in a number of bitcoin Ghs or KHS, then you will get a bitcoin even while you are asleep ...