I worked for a venue selling thru Ticketmaster for 4 years, AMA!
I started off doing phone operator stuff, then switched early on over into box office and stayed there. We started off using an in-house system and switched over to 100% Ticketmaster by the time I left.
Not trying to start a crusade against Ticketmaster or anything, that's been done before, just changing jobs and curious to see if anyone wants some stories.
EDIT: This has been fun guys, I'll still pop onto this alt every once in awhile to check for questions but for now I'm done. Glad I could answer some questions about how I sold my soul apparently! :)