I'd draw the line by trying to evaluate the utility of adding electronics vs. not adding it.
RFID tags on clothing and other such items - good and reasonable, because it aids with logistics and has no major downsides for the customer (and potentially adds value, e.g. by including washing instruction for supported washing machines that could warn you if the settings don't match the clothes the put in).
Adding internet connectivity to most household appliances - questionable at best, actually reducing utility at worst (see [0]).
AI-powered fridges [1] - bad value, gimmicky idea that drives up prices, makes the system more prone to failure (added complexity), more expensive, and adds little to no value:
So you want to know what's in your fridge while standing in front of it?
Good idea: just open it to take a peek inside.
Bad idea: adding an LCD screen to the door that activates if you knock on the fridge door [2]
So you want to know what's inside your fridge at home while grocery shopping, so you don't accidentally forget to buy something or buy something you already have?
Bad idea: add AI powered item detection and internet connectivity to your fridge that then communicates with your smartphone, may get bricked remotely [0], get infected by malware, or become expensive to fix.
Good idea: add the same functionality in the form of a smartphone app that either scans barcodes or uses (local!) AI to identify items (e.g. by taking a snapshot of the fridge's content) and that can auto-generate a shopping list for refilling the fridge or by matching its content against a weekly plan of meals (feel free to implement this idea and make millions of it, I'll allow it).
There's certainly more and better examples to be found if you look for them, but these are just some quick examples illustrating what a quick cost-benefit-analysis could look like.
RFID tags on clothing and other such items - good and reasonable, because it aids with logistics and has no major downsides for the customer (and potentially adds value, e.g. by including washing instruction for supported washing machines that could warn you if the settings don't match the clothes the put in).
Adding internet connectivity to most household appliances - questionable at best, actually reducing utility at worst (see [0]).
AI-powered fridges [1] - bad value, gimmicky idea that drives up prices, makes the system more prone to failure (added complexity), more expensive, and adds little to no value:
So you want to know what's in your fridge while standing in front of it?
Good idea: just open it to take a peek inside.
Bad idea: adding an LCD screen to the door that activates if you knock on the fridge door [2]
So you want to know what's inside your fridge at home while grocery shopping, so you don't accidentally forget to buy something or buy something you already have?
Bad idea: add AI powered item detection and internet connectivity to your fridge that then communicates with your smartphone, may get bricked remotely [0], get infected by malware, or become expensive to fix.
Good idea: add the same functionality in the form of a smartphone app that either scans barcodes or uses (local!) AI to identify items (e.g. by taking a snapshot of the fridge's content) and that can auto-generate a shopping list for refilling the fridge or by matching its content against a weekly plan of meals (feel free to implement this idea and make millions of it, I'll allow it).
There's certainly more and better examples to be found if you look for them, but these are just some quick examples illustrating what a quick cost-benefit-analysis could look like.
[0] https://www.electromaker.io/blog/article/electrolux-accident...
[1] https://www.theverge.com/2020/1/2/21046822/samsung-lg-smart-...
[2] https://www.youtube.com/watch?v=U4aeGzafgbQ