Mining just isn't worth the trouble anymore. Unless we see a huge surge in price or the prices of miners slashed, its just not profitable to the majority.
I have a feeling we will see sub 300 prices within the next 2-3 weeks.
The big players can mine close to the line between cost of mining and value of mined BTC. Any huge surge in price will be followed shortly afterward by a huge surge in hashrate and the onflow of rise in difficulty.
You are about the only person on the forum lately that I find myself nodding my head in agreement with when I read your posts.
So many other people think that the hashrate increases are driven by the sale of retail miners. News flash! It's not. It is the ASIC manufacturers themselves building-out huge datacenters one after the other in 3rd World countries with cheap labor & power and/or in cool climates. The biggest culprit is probably Bitfury with their high-efficiency, low-cost 55nm chips.
And the manufacturers are not panicking... yet... and probably won't be until closer to the halving. They'll continue to be profitable for a long time. And during that time, retail sales of mining gear and home mining will have vanished completely.