Nope, it was very quick test on the mining profitability calculator, but those results were so good that I was instead looking into this; http://mining.thegene

Nope, it was very quick test on the mining profitability calculator, but those results were so good that I was instead looking into this; http://mining.thegenesisblock.com/ http://mining.thegenesisblock.com/ Which gives much more realistic / complete analysis of the actual profitability levels available from the various ASIC vendors. And the end result is yes; it is clearly quite possible to be profitable, and there are a multitude of ways to be so, and ROI under half a year is almost par for the course.