Everything I've been reading from reddit's bitcoin forum has lead me to believe that the ship has largely sailed on making BTC off of mining. These ASIC devices seem to be ridiculously difficult to produce and only come out a few units at a time, but conversely, increase the mining difficulty by a large amount. So by the time you sit though a long waitlist of customers ahead of you and eventually get your ASIC, you won't be making much BTC per day.

That said, it's not really that big of a gamble to drop $149 on a Jalapeno and just hope that maybe you're able to eke out another $100 of profit out of it. Just be ready for that to not happen and for you to end up with a cool mug warmer