Are tickets at Dillon amphitheater always ~$80?

Never been to Dillon amphitheater before. Are there opportunities to go to the box office to avoid the extra $20 in fees? I know Mission Ballroom and Red Rocks do that sometimes.

I'm looking at a show with mid-line artists, nobody insanely famous or big right now. I feel like every show is $80-100 now and that's just crazy. What happened to $30-60 shows?