TORONTO, Canada — In July of 2015, the Coachella Valley Music and Arts Festival hit a milestone. Sales exceeded $84.25 million with 198,000 tickets sold — a record for the event that’s only been in existence since 1999. Attendance records are nothing new for Coachella. It has beaten its own benchmarks consecutively in each of the last four years. Coachella’s success isn’t unique either. Lollapalooza, The Governors Ball and Bonnaroo…