Adding seats as well and if it is worth doing. I think it is worth it because there is obviously more demand than current seats available. But you also want to have the stadium be full. BYU is a good example, they still sell a lot of seats yet at times the actual attendance looks sparse, much lower than tickets sold. And you Utes mock BYU for it. The point is that you want to both sell the seats and fill the seats, Utah shouldn’t expand beyond their ability to consistently fill the place.
The big question is how many seats should be added. Could Utah fill a 60,000 plus seat stadium with any regularity? I highly doubt it but if you take that 15,000 person waiting list as a fact without examining it then you would certainly be lead to believe they could because right now they fill up their 45,000 seats pretty much every game and if 15,000 + are waiting to be able to buy tickets that would mean a 60,000+ crowd every game is a forgone conclusion right?
But Utah isn’t even considering adding that many seats which tells you they know they couldn’t fill them, at least not with regularity. They don’t always fill them now even if they do sell all of them.