Your numbers don't match your claim.
I updated them (changed the difficulty to the 2.07B estimate for the next jump, changed power to 360W, and removed the BTC/USD increase, changed the lower diff increase/jump to 5%)
bitcoin mining profit calculatorEven with those changes that calculator is showing break even in June, with difficult 11x higher than the next jump at 22B
You forgot that there is at least 1 diff jump before those get to mining. I would love to buy more of those, but those are just too pricey for the risk. 1.5 BTC I could manage.