I went to Bonnaroo from 2007 to 2017, and the world and I changed.  I would still go if all fell in line.  I've seen some bands I didn't mention like Thin Lizzy, Disturbed, Sevendust, Charlie Daniels, B. B. King, Eric Clapton, James Taylor, Bonnie Raitt, and others because I can't find my tix stubs.  I was supposed to see Elvis in 77 at that last concert, but in a way I'm glad I didn't.  I still mourn him.