[nitrogen]

The general public seems to be capable of setting up and maintaining a Nest thermostat. The only difference would be that data only goes down, not up.

[Alphaeus]

I guess if you sell a pre-constructed device, that could work. There would be other issues (you have to spend money on hardware, potentially have to get it shipped, may not be able to get access to the device at all based on your region, keeping it always on and accessible, etc).