Cloud Mining at CEX.io - I thought that it would be a great idea to use some of my mined bitcoins to buy GHS at CEX.io, since they only charge .18 per GHS per month - that's not a lot right?  Wrong it's a fortune!.  I bought 1 TH/s of GHS power, so at .18 per GHS, the maximum fee is $180 per month.  Well that 1 TH/s of power only produces .5 of a bitcoin per month.  So, if the price of a bitcoin falls to $400, then my .5 bitcoin is worth $200.  Now subtract the fee of $180 that I was charged by CEX.io and I am left with a profit of $20.  Sure, cloud mining may be more profitable in a rising bitcoin market, but then the monthly fee would probably increase and then I wouldn't even be making .5 of a bitcoin because of the difficulty increase and all the hashing power coming on board.  My conclusion:  Sell the GHS's at CEX.io before they are worthless and use my S-1 rigs at home to heat my house this winter, while wearing earplugs.  A once profitable fun hobby is no longer profitable and definately no longer fun.