[jakobegger]

I've talked to a few people who were victims of burglaries, and the value of the stolen stuff never worried them. The violation of their home was what worried them. It messes with you when you know someone broke into your home.

So people probably don't worry about cost-effectiveness of their home security system, they just want to feel safe in their home.

[michaelt]

Even if cost is no object, every commercial electronic entry system I've ever seen has had at least one door with a bypass with a conventional key, in case the electronic entry system fails. And any electronic lock with a manual lock in parallel with it can never be more secure against attacks like lockpicking than the manual lock alone.

Of course, there are security benefits if you have a cleaner/dog walker/whatever and want to give them access you can revoke without the cost of changing your lock. Or if you're running a commercial installation like an office or AirBnB.

Still, I don't think electronic door locks will become mass-market until someone makes one so reliable it doesn't need a mechanical bypass key, which might be impossible.

[namibj]

You can pin a lock that's practically impossible to pick by permanently blocking when one attempts to pick them. Yes, the owner needs to drill the lock after such a picking attempt, but it prevents non-destructive entry.