what i never understand is how are you comparing this with owning at home ones?
tomorrow this company could shut down. what kind of information do you have? Do you have legal contract that requires them to pay you back?
what guaranties do you have that you will still own 20 mh in 1 yr from now?
A business can go away, that is true. It is part of the risk. However there are a lot of risks with running a major mining operation in your home too. It is unlikely that any mining rigs are covered by homeowners insurance. Things like fires, floods, theft and acts of God happen every day to people. I think if you are a heavy miner in your home you are greatly increasing the risks have some horrible event happening.