I contacted Bellagio, home of Cirque de Soliel's "O". They do have special seating set aside for hotel guests. I was able to secure 6th row seats by making a one night ressie at Bellagio. The best I could get otherwise for the same show was 4th row out of 5 on the upper balcony. (That's the 2nd to the last row in the theatre.) I will have to show my room key, credit card used to reserve the room & a photo id to pick up the tickets. So in addition to scoring great "O" tickets, we get to spend the last night of our trip at Bellagio. 
