I know 'someone' who rode with someone else I know on a trip...the car owners had gotten GPS, and I am informed that for most of the trip the focus of conversation was on the GPS and whether it was performing and how to interpret & follow it.

Now, I LIKE the idea of 'knowing' exactly where you are, but when it becomes like being around folks with a new baby, where all topics lead to what the baby did, or didn't, do, I must demur. I have spent 50 years of driving getting there with maps, and never gotten very lost.

I don't go enough anymore to even consider a GPS system, as fascinating as it would be...but if I ride with someone, I'd hope we could use it ONLY as a guide, and not as a new baby.