Obviously if the coin prices on FTC drop that math doesn't work. Other than the risk of price drop, what am I missing? This just seems too obvious and too easy.
It's an unusually profitable time. Mining is a low profit margin, don't be fooled. Most months you are scraping enough just to pay for power. Honestly I had most of my rigs boxed and ready to sell a few weeks ago. Unboxed them to mine some TAG.