I don't know about discounts, but I wouldn't want to be front and center. I think you miss a lot in those seats. When we went, there were 6 of us. We had section 204, Rows AA and BB, seats 14,15, and 16. We all felt that we had the best seats in the house. Some of the show goes on in the aisle right in front of us, and the people in all the floor seats didn't even know it was going on.
Depending what night you choose and how far in advance, the Cat. 2 tickets can be quite good. I bought the tickets from Undercover Tourist, and I'm in the first row of Cat. 2, right behind the last row of Cat. 1. Great seats, and I saved quite a bit!