[ikeboy]

A couple points:

1. It's unlikely that the price is set at $X, and there are precisely enough tickets to satisfy everyone who wants one at $X, but no more. Either the tickets won't sell out at $X, or there will be those who can't get tickets at $X.

2. If the original sellers knew how much demand there was, either they'd set the price to be as close to the balance point as possible, or not. If they did, then there should be no opportunity for scalpers unless the price is very unsticky upwards; but if there are a lot of people willing to pay well above the original price, then it's again unlikely that demand is equal to supply.

3. If the original sellers didn't try to set the market value, then there would have been a shortage anyway. Again, the fact that scalpers can extract a large amount from each resold ticket means there's enough demand at high prices, and therefore likely to be too much demand at low prices.

[raverbashing]

About 1. you're right, also there's some amount of price segmentation in some concerts/tickets (closer to the stage, VIP area, meet&greet tickets)

2 and 3 might be solved if (first) ticket sellers would set auctions for ticket prices, not sure if it's possible legally though