Right now it's hard to earn profit if you pay less then 10 cents.
Home mining is dead and the next step to centralization has already started.
It's just a matter of months before the game is over.
Home miner is getting harder and harder. I consider myself a hobby miner slightly bigger then home with my mining area. I had to get rid of last gen gear just as profit was to small, made far more selling them.
Will be intersting on what next gen gear costs, what difficulty does. So many variables and not a lot of answers.
A cheap way to earn temporary profit is to setup a trickling solar panel to a battery, and running a low power useage asic until power is gone, stopping asic, trickling again, etc.
You'll be negative for a while due to initial investment, and if at all you ROI, last gen gear will take you over a year to roi. Raspberry pi controllers aren't feasible with solar due to them dying when power is lost, so that cuts a lot of usbs out (which basically kills profit except for a few mining, "standalones". A BFL is great since their easyminer can be used on android). As you can see my method is useless because of the complications, so I now really think 21 cent kw IS TRULY IMPOSSIBLE.
