just the atmosphere and energy of the band alone is likely to eclipse anything you’ve seen before
Why would you think that?
Also- I don’t think you’re quite understanding the point. Glastonbury is a huge pot luck of music, you just don’t know what you’ll get each year. Maybe you’ll luck out and there’ll be stuff you want to see, maybe you won’t. Last year would have been good for me and really made me look at it again, but the one before was horrible. With most festivals there’s at least a general indication of where it’ll go, with Glastonbury you end up with BB King on the main stage…
When I go to a gig, I want there to be bands I like. Would you buy a gig ticket to see unannounced bands of random genre? Then you turn up and it’s a skiffle band, Yoko Ono, and a thrash metal band, and dubstep in welsh, and Dweezil Zappa playing Mozart on a kazoo, oh and Peter Gabriel.
Not that there’s anything wrong with enjoying that, but when I say I love music, I mean I love music that I like 😉