I do have a technology, engine immobilizer, popularized in 90's. I assume that this was a selling point back then to prevent car theft.
Reality is that currently it costs $2 to $20 to cut a key. However, the price is up to $350, or more, to program transponder in the key at the dealer.
My car right now is 10 years old and I do not need some sort of protection for the car whose value is less than $2000. More importantly, once, immobilizer stopped recognizing native original key, which required mechanic tinkering with the immobilizer and car computer.
We are talking about redundant entertainment technology? How about unnecessary technology, a software, which can disable your car in the middle of your trip.
Speaking about car electronics - currently cars can perform the self check, auto diagnose an tell you what is wrong with the car. Can, and actually do, are different things: all the car is doing is only telling you to return to the dealer for "Maintenance", when the "Maintenance indicator" lights up.
I wish automakers would follow the philosophy of low cost airlines - all the features are optional, and not forcefully shoved to the consumers.