Absolutely! Here is my journey on this topic: #629837 #735779 #767748 #776023

TLDR: the biggest existential threat to Bitcoin is mining pool centralization. I store my family's wealth in bitcoin, thus I want to see more mining pool decentralization.

If the top four mining pools possess 624Eh/s, as they do at the time of this comment, then 10 million people need to run itty-bitty operations like mine (and mine to other pools) to equal that much. HOWEVER, see below for why I think this is actually a realistic expectation.

Not exactly. I'm mining not just to secure the network, but to recycle the heat. When you take into account that my furnace can cost me up to $36 a day, we're actually looking at $39 a day. Also, as much hassle as mining maintenance can be, it's actually at least simple enough that I can do it myself safely, which is not true of larger issues with my furnace.

However, these little guys aren't actually powerful enough to take care of business in the coldest part of the winter. I'm still at the experimental phase of all this, and haven't sunk serious money into it yet. However, with three s21s (or equivalent), hooked into an actual HVAC, we're looking at 10X the hashing, 10X the profits, and probably 100X the incentive for people to take this approach.