Entertain or educate? I don't think they are mutually exclusive at any rate. Good theatre should do both, no matter to what extent: 90/10; 50/50 etc. And educate is such a formal word: I want to understand something I don't already, whether it is understanding a different person, society, fact, mind frame, situation.....etc. I also think the word "entertain" is too informal. I want my mind to be engaged and to keep the outside world out for a time.
Feel or think? This, too, is not mutually exclusive. It can come in degrees and either can happen first. I need to be curious, I need to care. This question is one that personally, I could pick one that is more important TO ME. I can enjoy a show that doesn't force me to think as long as I CARE.
Uphold theater to a certain caliber? Not at all. Room for all sorts, for all sorts of people. They can't cater just to me (but wouldnt' that be nice?). While there are shows that I don't enjoy (for a variety of reasons) if they appeal to some, that's good enough for me.
I teach (drama). I bring my kids to NY every year for a weekend. Part of me hopes they like every show they see, after all, it's their trip, their money, their experience. The other part of me hopes for them to critical and not just accept that broadway automatically means its good. Regardless, I want them to know WHY they like or dislike a piece.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.