$5.57 a month for the miner's power.
$2.87 a month for the pc power, not including wear and tear for letting it run around the clock.
$1.20 for eBay 10% fee.
$.50 for PayPal's fee
It cost me over $10.14 a month the run this thing. So I ain't really making much of any thing. And you don't have to worry about restarting the miner every 24 hours when it goes down.
It looks like nice and clear earning scenario. But i would like to repeat my question: Can you explain how and when customers can withdraw their earnings ( i mean - time, amounts, fees)?
This. Also how are you going to be able to attain trust from people in an industry known for frauds and scams? A big sell point if you want to be in the mining business is getting your customers to see that you're not like all the others. I would try to focus on that just as much as every other aspect of your business.