Looks good. Kinda like the numbers I put together. I lease some of my ants out which helps close the gap. Sometimes you can mine alts and sell at
really good returns vs. Bitcoin.

Underclocking to reduce power usage helps too.
Thanks! You're right, there's more you can do to close the gap and selling GH/s on eBay is something to consider when selling 4 x the mining results. As for mining alts, you have to carefully choose which one.

I tried selling my S1's but that's not an easy task. S1's were easier to sell in Feb. than today. The problem is not the price, it's the usefulness of the machine itself... by the end of the year, it will produce 0.0008 BTC per day if diff. increases by 15% which is far from sure.
But hey, we're part of it! We were there! We'll have stories to tell our grand-children in a few decades!

- Kex.