Seems to be outpacing inflation. I wonder if there are structural reasons behind it (transport logistics, carbon taxes in different jurisdictions, more middle men etc).
The music business model is the reverse of what it was in the 1970s, i.e., in the '70s, bands made money selling records and tours were merely marketing vehicles to drum up sales. Bands, rarely, if ever , made money on tour in the 1970s. I had chat many, many moon ago with the promoter who brought Genesis to the Tower Theater in Philly for the SEBTP tour and he said something like "I paid them $250, and their touring expenses were $500". My numbers might be slightly off, but not by a lot. Today, bands make zero dollars selling albums, hence the financial model dictates that they make a killing touring. The first act to do this big time was the Eagles on their Hell Freezes over Tour in 1994? Tickets were insanely exorbitant, something like $150, which was unheard of. But boomers (of which I am i part of the very late segment) forked over the money. Guess what? Every other '70s band starts kicking up their ticket prices after that "watershed" tour. It's a great time to be a promoter since they stand to make major $$$$$$$$ from tours.