[staticman2]

So it looks like these models are over 10 years old

I'm not trying to be a shill for a trillion dollar company but I'd probably put up with the annoyance of swapping the thermostat once every 10+ years over switching to a different company if I was happy with it.

[gregors]

If I pay for something and you don't tell me upfront on the box that it only supported until a certain date in big bold letters (like smoke detectors do). I'm never going to buy a product from you again.

[staticman2]

I doubt in practice what you are saying is true. It would appear to disqualify owning a smart phone or a laptop.

[igor47]

I still regularly use very old laptops and phones. These devices don't stop functioning when they're disconnected from a cloud network.