Listening to it in the best possible conditions is appreciating music.
Guess the opinions differ about what the best possible conditions are for listening music. I think listening to a band produce their music live and blasting it through high class equipment are the best possible conditions, granted open air festival performances are not the best conditions compared to small venue performances.
Very few bands are good on stage. But people who visit live performances (in the open space) are usually wasted, so they don't mind.
Depends on your selection of bands, I find that most of the bands I really listen to are just quality musicians who can produce similar quality live.