I checked out CloudMining.website and buying hash power looks pretty cheap. Do you think it is a good investment to buy a bit and then begin mining?
No.
There are many could based mining sites that are scams. It would be best to avoid them unless you are very certain that you have found one of the few could mining sites that aren't scamming and that can actually provide you with a reasonable chance at a profit.
If you have access to cheap resources (ASIC equipment, cooling, and electricity) then you might be able to mine profitably, otherwise you can consider mining at a loss as a hobby if the technology and activity interests you.
Perhaps in the future, you can avoid splitting the conversation by avoiding asking similar questions in multiple threads.
