Additionally, many of the "smart" capabilities work against the lifespan of a device. Refrigerators are devices that I expect to last 20+ years with minimal maintenance (changing water hoses and filters, vacuuming dust on coils, etc). I don’t want to be replacing my refrigerator because the flash used by the OS fails and the device won’t function as a refrigerator anymore.
There is little value that an LCD panel brings to a refrigerator, and even less value in having it WiFi enabled. Thus, there is little incentive for me as a purchaser to go that direction. I’m already pissed at how difficult and expensive it is to replace the plastic ice chute on my current refrigerator. I don’t want to even consider replacing the board driving the “smart” capabilities of a refrigerator (or having to ensure that the firmware my refrigerator is running doesn’t have vulnerabilities).