With electricity being 11.5 cents a kWH, rising difficulty, and the recent drop in BTC to USD, by my math my 4 Cubes will not generate enough income to cover the cost of electricity in then next 9 days or so.
Shortly after that (2-4 weeks?), my BFL units will be in the same position. I expect that by the end of July / early August I will shut the entire mining operation down.
I post this because I was wondering if anyone else was starting to get in the same position with the 'older' ASIC (i.e. 110 nm, 65 nm, 55nm) units?