"Dumb" home devices work as expected for 25-50 years, and then you replace them.
"Smart" home devices work as expected for about a year and then they fail in new and exciting ways, and then you replace them.
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"Smart" home devices work as expected for about a year and then they fail in new and exciting ways, and then you replace them.
Also, that posts says the thermostat will still work locally so the failure state of the "smart" device here is that it became a "dumb" device after a decade+.
[1] - https://en.wikipedia.org/wiki/Google_Nest#Nest_Learning_Ther...
How much do you think a server for config files costs? The true cost is very little here. You can make a server host a million thermostat connections for less than a thousand dollars per year. But let's 10x that to be safe, and have a sysadmin dedicate an overkill 1 day per week to keeping the servers happy. And we'll say the sysadmin makes well over median salary and costs $200k to employ.
For 2 million devices, that's $20k a year in server costs and $40k a year in sysadmin. For 50 years, that's 3 million dollars. So it would take a whole... dollar and a half per purchase to fund 50 years of servers.
Making this subscription-based would be fine, as long as I have my choice of providers. Because then I can run it myself on a raspberry pi or pay a big host a few dollars a year to handle my entire household of devices.