You have to pay for what you get, Utah and res are no special case they just have a stadium that is a little bit to small currently so the tickets are overvalued. Once it expands, and believe me the officials at Utah know this, the demand decreases and the amount they can extort from people to buy in will decrease. The key is to add just enough to keep the value high but also increase the revenue rather than adding so many that revenue stagnates or even decreases because of excess availability.
I know ute fans like to think they could fill another 15,000 every game but I don’t believe it for a second.