Actually, concert ticket prices are set the same way that any other retail product is priced. Their ultimate goal is to sell out all venues at the highest price that the market will bear. Normally, a tour needs to sell close to 90% of the seats in order to break even.
If they TRULY wanted to prevent so-called scalping, they would only sell tickets once you are inside the door.
As long as you have an outside ticket booth, and allow online and other methods of ticket sales, there will be scalping.
I tried to get tickets to two shows this summer, both of which were sold out within one minute of ticketmaster’s announced sale time. I don’t feel like paying one of these pro resale outfits, so I won’t go.