I did two road trips from Boston out west and back. 5000 miles one summer. 6500 miles another summer. Driving the interstate through Nebraska, Kansas, eastern CO, etc, is boring as all hell. I would gladly have more autonomous features for that.
I can understand that, but really, that sounds no different from a morning commute. Point A to point B. That's transportation, not a road trip . When we go traveling I make it a point to avoid boring interstates whenever possible. We're on the road for the experience of the trip, and turning it into a commute is not part of the experience we're after.
But if you had to go from home to, say, an area like Moab, and had to spend a few days on the interstate to get there, I can see the appeal of having the car drive you while you sleep.