What would you pay for a jalapeño PRE-order?
This farm you have a pic of looks expensive, real-estate consuming, and less profitable?!?
That are USB miners and not jalapenos.
One USB miner currently costs ~0.8 BTC. Once running they cost next to nothing for electricity. But they are not very providable. Running them is more of a play project than a serious operation.
I think they would be the best approach though as you are doing it for the fun.
BFL did leave a lot of customers disappointed: long waiting times and defect products.
If you want to take a risk for profit, just buy Bitcoins and hold them until they are worth enough (or crash and burn to zero ^^)