Hi,
just for curiosity which miner hardware do you have?
just thinking about the electricity costs
This is currently running on a combination of BFL and ASICMiner hardware.
I'm thinking after Chinese New Year they will be replaced by an Antminer S1 (same hash rate, lower power usage). If/when that happens, the hosting fees will be adjusted to account for lower electricity costs (though that's not the entirety of the hosting fee, it's definitely a significant part).