Indeed, and my experience comes from being a musician. I'm in a jazz quartet, but both of my kids are in string quartets, one is a professional.
One thing that might make it hard to study is that the cost depends on the event and what's actually being delivered. Everybody charges a premium for weddings and corporate events. But those things also have to run absolutely like clockwork. On the other hand, the bands I'm in are also happy to charge a lower price for a "budget" wedding that isn't a $100000 Disney blowout.
Everybody charges different if travel is involved. What most ensembles do is, first, book as many high-dollar gigs as possible. Then, fill in the holes in the schedule with lesser gigs. The best musicians in my locale will take a $50 gig if the alternative is staying home.
One thing that might make it hard to study is that the cost depends on the event and what's actually being delivered. Everybody charges a premium for weddings and corporate events. But those things also have to run absolutely like clockwork. On the other hand, the bands I'm in are also happy to charge a lower price for a "budget" wedding that isn't a $100000 Disney blowout.
Everybody charges different if travel is involved. What most ensembles do is, first, book as many high-dollar gigs as possible. Then, fill in the holes in the schedule with lesser gigs. The best musicians in my locale will take a $50 gig if the alternative is staying home.