My experience tells me otherwise...It is totally unprofitable to use Cloud mining. Take genesis mining as example, they are still haven't problem paying out which is suppose to be a daily event. Secondly as the difficult rises, whatever hashrate you bought will not cut it, and you may have to invest more to increase the hashrate(top up). If you think about it, it is not different from a ponzi scheme with slight modification. At least when you buy the mining rig, the rig belongs to you and you can switch to mine other coins(same algo) which maybe more profitable to bitcoin.