I can't remember the post, but I remember a while back there was a guy on here who said he used to work as a scalper. I remember he said that despite talking about attempts to get rid of scalpers, the reality is that ticket master and other outlets loved scalpers and worked with them. This is because it's in the interest of the ticket vendor to work with scalpers, because scalpers assume the risk of non-selling tickets.
If it weren't' for scalpers, the vendor would take a loss on any tickets that did not sell. Because scalpers exist, they ensure that the tickets get sold out and then the scalper takes the risk of not being able to sell the tickets.
Ticketmaster and other vendors will never get rid of scalpers because they have a very strong financial incentive not to.