Colt did a study once, IIRC, that found that there were folks who would buy 'smart' guns who wouldn't buy regular guns.
If they could be made to work - then that's a market decision.
However, the problem was that some wanted to make it mandatory for all new guns to be smart guns. I think that is the law in NJ, if they ever are made to work.
Mandating them is the sticky point. Their existence will be like gun anti flies to honey , so to speak.