I belive for a rig like this the eletric will probably run you between 150-200$ a month but you would be making about $1500 a month mining from waht I understand.. so it's kind of a no brainer.. It's just the inital investment that is the hurdle. But yes I have high hopes for sia as it's so cheap and good potential to get you hands on a lot of them, I'd def reccomend it! Whats cool is above I have a link to a plug that monitors your electricity usage so you can keep track of it that way to see exactly what it's costing you.. only 40 bones on amazon, I'm sure there are cheaper versions as well elsewhere.