Now that I am no longer employed I can say this with 100% honesty. Ticketmaster is a bunch of crooks who make you think a show is sold out but instead, they keep all the tickets for themselves and sell them at a high markup on secondary sites like Stubhub and Vivid Seats.
All the scalpers that people assume are buying all the tickets are actually the vendor and artists selling the tickets themselves. The ticket game is a dirty and disgusting industry and if I never have to return to it I will not lose any sleep.
All your favorite artists that you tweet to help you get tickets to sold-out shows are actually the ones keeping you from getting them in the first place.
Also if you want tickets to an event, wait to buy until the day of. I can't tell you how many times the company I worked for sold sports tickets valued EASILY over $100 for under $6 right before the start of a game.