@Biodom: Any idea on how long the units will ROI and the actual life of the units to begin with? If difficulty continues to rise the way they are then how long approx before the machines can't even pay for their own hosting you think if hosting is $270 a month per unit? I'm considering the high possibility of just running them until they can't break even and just drop out of this mining thing because it's not worth the risk.
Nobody can give a good prediction on this, as the parameters to calculate it are largely unknown.
A typical lifetime for a miner has been around 1 year , which is mainly due to high historical efficiency increases.
Current generation Spondoolies miners could proove to be a reliable backbone of the blockchain for over 1 year, if difficulty growth decreases as expected and / or bitcoin value increases.
It is also likely that August batch machines will be profitable.