From what I remember, I don' think the trapezoid structure that helps keep the sound in would even be allowed today. I believe the climb to the top may be steeper than most arenas and the fans are closer to the floor also. Many of you might not be old enough to remember how loud the RAC can actually get. In the 80's and very early 90s, you literally could not hear the person sitting next you during some of the big games - even if they were shouting (West Virginia, Penn State, UNLV and Missouri come to mind).
Some day soon, I hope we again take advantage of the incredible home court advantage the RAC can be.