Why is a secondary market in stadium tickets a desirable thing? If you want to use your ticket to go see the event, use it. If you don't, simply do not go. If

Why is a secondary market in stadium tickets a desirable thing? If you want to use your ticket to go see the event, use it. If you don't, simply do not go. If you do not want to go and want to recover your costs, sell it back to the venue at the purchase price.