Here's some interesting numbers to think about:
Electricity at $0.12/KWh (my approx power cost)
Electricity cost per YEAR: $38.00
Assuming current
BTC price, the Jalapeno would need to mine less than 0.30 BTC per YEAR to be unprofitable
Profitable Until Difficulty >2 BILLION (>166x current diff)
ETA of break-even at my silly purchase price of 23 BTC cause I'm impatient and wanted hardware now (assuming 75% profitability decline per year): 112 days
Estimated net profit in 1 year time frame: 5168.44 USD
https://dl.dropboxusercontent.com/u/1181169/P1010168.jpgOn the unprofitable point. Are you really will to only make pennies or even just a few dollars a month for your time an hassle to maintain the miner?
Most miners seem to only be willing to run a miner if it is making at least double what the power cost is, if not more. (Another point a lot of people don't seem to take into account when talking about power usage with Asics is the power to remove the heat generated by the miner. This essentially means any power cost calculated from the draw from the wall needs to be doubled at least. Yes their is some situation where cooling/power usage is not a issue, but these people are the minority). Just wanted to point this out as I can't recall the last time this was mentioned, I'm sure it will get lost with most other post that point out important factors to making a ASIC purchase, but eh, at least I tried.
BTW, not sure how you came up with that BTC total for 1 year. But all I will say is good luck with that. <-Last sentence was sarcasm.