Ticketmaster lets you resell tickets on TICKETEXCHANGE

Iif you buy tickets on ticketmaster, you can sell them back to someone else using Ticketexchange.

TicketExchange is Ticketmaster’s new online service that enables premium and fan-to-fan transactions. Buyers simply select the ticket(s) they want based on price and seat location, without having to bid against other buyers, without having to coordinate delivery from anonymous sellers, and without the gamble that the tickets are legitimate. Sellers are guaranteed payment for tickets sold, without having to collect payment or deliver the tickets to the buyer.

Have you tried it?