You have to be dumb if you buy smart
So called Smart TV that stop getting updates after a couple of years, SmartPhones that don’t get an update during the life of a contract, set top boxes that stop getting app updates after a couple of years, smarthome systems where the vendor decides to move to a new standard after you completed retiring the house with now unsupported devices, my oh so smart Subaru that doesn’t get firmware updates a year after it rolled out of the factory because the dealer seriously seemed to expect I would want to trade it for a new one!
If anything has the word smart on it, or connects to the internet... you probably want to assume it has a 12 month built in obsolescence switch and do the maths accordingly...