TM/Live Nation own the bulk of the larger and mid sized venues nationwide. The artists are under contract for a set number of shows at a set price. All of those extra fees and variable “Platinum” pricing all go to TM/Live Nation, not the artist. The artist knows this when they sign up for a tour. However, since TM/Live Nation is signing their checks the artist isn’t going to complain. Sucks for the fans, both new and old.