magicmoneyprintingmachine.itis is just getting started. in a lousy economy, the prospect of a magicmoneyprinter will be just too tempting.
I've got a box that I paid about $1700 to build that's generated $1080 after it paid for itself first. No magic, just math... and electricity. Oh, it works good as a heater in winter too. It doesn't replace the day job but at least it's a profitable hobby.
Right, unfortunately that's even more tempting to some - the rising difficulty notwithstanding. And once they pay out money for a miner they'll keep it hashing as long as possible for two reasons, it has to make its cost back and btc might hit $40k according to those very rich brothers, also that with increasing difficulty it makes more sense to keep it running in the present rather than shut it down hoping the difficulty will drop. I don't see those things changing.
I wonder what percentage of the network hashrate is in homes, garages and backyard sheds and what percentage is in rental or owned commercial facilities as full fledged businesses.