[KozmoNau7]

There are many things in life where the main objective is not to extract the maximum possible level of profit.

The artists/bookers/venues choose ticket price levels based on a number of factors. They want to fill the venue and be profitable, but they also want to maintain a relationship with fans, which is going to get soured if the fans feel ripped off. There is also the factor of drinks sales, if you pay a ton for the ticket, you'll probably buy fewer drinks, and venues make a lot of money on drinks.

If they priced the tickets as high as the market could possibly bear, only the people with enough disposable income could go. That makes all of the fans who cannot afford the tickets angry that they cannot go, you really don't want to do that if you want to maintain a fan base.

Scalping is illegal in many countries for good reason. Here in Denmark, you can resell tickets all you like, but only at or below face value. It works and the artists/venues get to set the prices at levels that match their fan bases. Scalpers who don't care about the bands, but only about profit, don't get a say, because they they shouldn't have one.