Useful life of a TV is at least 10 years. Useful life of a internet media device is generally significantly less than that, but also relatively cheap to replace/upgrade every couple years. (Aside: my 5 year old Nvidia Shield still gets updates and works perfectly, but that's an exception compared to all the other media devices I've owned).
The one smart tv I own is crazy annoying. I used Plex, Netflix and YouTube on it, and about once a week either the core software or one of them would get updated, constantly nagging me with "update available, install now?" prompt, and then blocking usage for several minutes when I finally relented and said yes. That TV now has a Chromecast and all built in network connections disabled.
I won't even get into the adware/malware nonsense others have already talked about.
The one smart tv I own is crazy annoying. I used Plex, Netflix and YouTube on it, and about once a week either the core software or one of them would get updated, constantly nagging me with "update available, install now?" prompt, and then blocking usage for several minutes when I finally relented and said yes. That TV now has a Chromecast and all built in network connections disabled.
I won't even get into the adware/malware nonsense others have already talked about.