Who cares? As long as at least 1 person does some mining, we are fine.
I'm actually looking to pick up at least 1 S9-performance-equivalent miner, just to keep a single system mining for the principle of it, to go along my full node and LN node.
Don't want to support Bitmain.
Doesn't seem I have any other options available to me at this time.
Here's hoping those products out of Japan come online soon, or dare to dream Bitfury ever reconsiders coming back down to earth.
It seems that if you are a decently-sized residential property owner (not that you are fat), then it could be cost efficient to include some likely low cost energy source, whether that is solar or windmills or geothermal, but yeah, if you begin to generate too much energy, then you will be incentivized to add more miners, too.
I recall that there are some folks researching into ways that they can either use the heat or generate some additional electricity from the mining heat by-product.