Lots of good threads now on mining issues and cloud mining issues in particular. I don't see buying a fixed cloud contract where you can't get your original investment back (either by withdrawal of the contract or having a trading market for it) makes any sense at all. The cloud providers are addressing this by many new entrants starting to offer tradeable contracts (competition to the CEX model).
This week I bought GHS on CEX. The price had just fallen a lot and history shows it then has a bounce back and stability period, plus they announced cloud maintenance reduction. So I held for a few days then sold once I had reached my profit target being 20%. I detail the outcome I saw from the trade and mining rewards whilst I held the contracts:
25/9: Bought 180GHS at 0.00206 = 0.3708 BTC
30/9: Sold 180GHS at 0.002486 = 0.4478 BTC
Trade Profit 0.07668 BTC +20.7% (of initial amount)
Mining Rewards 0.005139 +1.4% (of initial amount)
So in 5 days the trade itself made a 20.7% return and the mined rewards added 1.4%. Thus total return being 22%. (If I'd continued to hold my return today would be more like 37%, oh well..)
On the CEX mining rewards you can see the overall return was positive, what I noted was that the real long blocks 2 hours or so were not, but they were compensated for by the low maintenance cost on the more frequent short time frame blocks. 40 or so blocks were being found each day approx. I see lots of people complain about maintenance fee's, my experience was a good one. Heck even if I had made no profit on the trade itself but can walk away with 1.4% gain from the mining alone in 5 days, that's a great outcome.
So don't buy a fixed cloud contract unless it is tradeable or initial investment can be withdrawn.
I also bought some Doge, still holding that to the moon.....
