As requested… still prediction of future prices and increase of difficulty over time seem a bit like reading out of the tea leaves to me. I guess a reduction in profitability between factors of 0.61 and 2.00 could be realistic.
To put this a little in perspective here some gain numbers and my effective losses (!!!) for the coins involved.
Just sitting on the 90.47 LTC coins I’ve invested on 07.21.2017 would have made me $ 2,067,24 with those updated numbers vs. $ 1,394,62 I’ve made with Genesis Mining. So in my case here so far I’ve lost money and liquidity. Sure one could say I picked the wrong ALT coins besides BTC and maybe the rise in LTC at this point was atypical (I didn’t see that coming at all) and so on. However there is a possibility that I’ll make some money on the Genesis Mining Contracts I’ve bought.
IMHO of course diversification is in general a good idea. But like in my scenario here the goal is to make more BTC so I’ll have to look at the overall market performance vs. mining profit. A mining service will have to outperform the market so you can make money and they want to make money too of course and - I’m fine with that - not to mention affiliate structures that every Genesis Mining customer pays for as well. So I guess if you just take the money you want to invest in cloud mining and buy BTC there is a certain possibility that this HODL will outperform the mining service. BTW without headaches from missing payouts because the mining service got hacked or any other issues. Last but not least the mining services adjust their price tags upward as well. So you probably won’t be able to get the TH I’ve bought for the same price.
So, like I wrote before lots of moving parts here and it’s kind of tricky to make an reliable cost benefit assumption. We’ll just have to wait and see.