We recently went to the one in Myrtle Beach and had alot of fun.
Q. Do you need to order the vegitarian plate ahead of time?
A. I would definately order it ahead of time. I did not know this was even available, but things are very hectic when you get in, so order it ahead of time and make sure you tell your server that you ordered it when you first sit down.
Q. Is it worth paying the $5 per person for priority seating including banner?
Do you end up buying the banner anyway?
A. I thought it was worth the $5 for seating - you get put in the first set of seats. If you have kids this is very nice as they can see much better. We wound up in the first row, but I think this guarantees you the first four or five rows (not necessarily the first).
Q) Do they really try to see you things like photo's?
A) They did sell photos - no hard sell, but they do offer it. They take pictures with the king or queen right after you pay, and they take another picture once you are seated. We bought one, but they were fairly expensive. They also make you wait a while to get in to the theatre and there are tons of things to buy as you are waiting. Beware if you have kids - we wound up buying things for our kids.
Hope this helps.