Depends how it works, just as an example (not what they are doing) if ticket master guarantees X seats for Y price. Then the band might be fine with ticket mast

Depends how it works, just as an example (not what they are doing) if ticket master guarantees X seats for Y price. Then the band might be fine with ticket master doing what every they wish -- there's no risk to the band. Granted the band probably negotiated minimums and a cut. Remember, you also have the venue, security, traffic, marketing, etc. There's a lot involved with these kind of events.