That is my current strategy. However, don't be surprised if dark patterns start to appear like error messages, warnings, reduced functionality, and outright failure. Sometimes our TV will do pop-ups about needing to update while using the Roku. I wouldn't be surprised to see Ad-Supported appliances that fail after too long without internet.

Also, be aware that repairing a purely electrical appliance is fairly simple for most small appliance repair businesses. However smart appliances can be setup to only allow "Authorized" repairs. I've seen this for some electric bikes like Bosch bottom bracket motors where you need specific USB keys to work on or modify them that are VERY expensive.