Re: Home mining makes a comeback: check out Spondoolies new offer, the Jackson SP20
i get free electric. 
feel free to stick your 'maintenance cost' - somewhere in China.
feel free to stick your 'maintenance cost' - somewhere in China.If you have free electricity then you'd have to be an idiot to buy one of the most expensive miners per Gh current available. Also, the vast majority of people don't have free electricity.