- The difference is doing a show 3-4 times a week for two weeks (common for local productions) vs doing 8 shows a week for a year. The latter is considerably more exhausting
- and yes, they are usually putting more into each show that your local guy with a day job. That's why they're the best of the best, and why you're paying big bucks to see them.
- No, they do not care about your feedback and your opinion on their performance. They get notes from the director and other professionals whose job it is to evaluate their performance. You know significantly less about the art form than any of these people.
- There are talkbacks and discussion panels. They are often separate events you buy a separate ticket to, because again performing is exhausting and no one is at their best or most thoughtful after. They still don't care about your uninformed feedback, this is for them to explain things to you and answer questions.
- Busy stage doors are also not the place for an actual conversation. They're an autograph signing line. They sign the autograph, you get to say maybe 1-2 sentances to them, they say "thanks for coming" and move on to the next.
- Live theatre is an art form. Why see a movie when you can read a book? Why read a book when you can look at a painting? They're all different art forms with different norms, language, cool things, etc. You can't exchange one for another. Even when I have watched a live performance that was being recorded, and later watched that recording - the experiences are not the same.