I would love to hear your (and other's) opinion about why mining is not profitable, and what you are doing that makes it not profitable.

Let's look at the portion of my farm mining ZEC--of which I have 14 GPUs.

It costs an average of $5.79 per day to run all of them for 24 hours. In the last month I mined 4.18 ZEC. ZEC is currently trading right around $500 on Bittrexx (which is much lower than it was trading yesterday actually).

This means I've spent about $175 in electricity and have $2,090 in ZEC as a result. All in all, depending on fluctuations in BTC (the underlying currency that everything trades against), these 14 GPUs average a daily profit of $50-$85--consistently hovering in the $70s.

Mining can be extremely profitable if you know what you're doing, manage your farm correctly, make sure the pool you're with is getting you what the calculators say your setup should earn, and are adjusting/monitoring everything on a daily basis.