Our seats were on a higher level, and the first in the row so we had the wall right in front of us. It helped because Ben was not distracted with people directly in front of us - meaning he did not have people to bug. I did not plan this on purpose, but will next time.
Ben stood for the entire first half - enthralled with the lights, music and action. During the second half, the attendant allowed us to sit in the handicap seating with Ben's wheelchair. Ben's attention was completely on the show. At one point, I put my hand on his leg to say hello, and he pushed it away.
During our ride on the elevator, a circus employee gave us 50% off coupons for next year. I am already making plans.