I feel like progress is being made at an alarming rate as it seems like only a few years ago that self driving cars could actually become a reality. There will be a point where self driving cars are more reliable than a human and already, insurance companies will be getting squeamish at the thought.
If progress is made to the point that the system becomes utterly flawless, I do wonder how this will change attendance and possibly hotel stays. As the technology develops, the basic layout concept of a car will change and if you can end up with something like a small RV where you can sleep behind the wheel, a day trip for people a thousand miles away can become a breeze.
Set off at night, go for a sleep in your car and wake up at the park. Have your fun, get back in your car, fall asleep and wake up at home the next morning, no hotel needed.