I can't give you specifics on rush...but the show is only at about 70% or so capacity. Obviously, it is more full on the weekends.
I was there just this past Sunday matinee and there were empty seats...not a huge amount....but enough that they probably wanted to sell them at rush.
I will say this: In my opinion, it is simply a brilliant piece of theater.
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.