I was watching a YouTube of Mark Cohn singing "Walking in Memphis" the other day and what he said in his introduction made me think. He thanked the audience for coming out to watch him, and then said, basically, that there was no longer a recording industry any more, and that whereas in the old days artists would go on tour to promote an album, nowadays they bring out an album to promote a tour, as the tour is the only way they can make money any more. He then said "Maybe that's the way it was always meant to be", which I thought was an interesting take on the situation.
This makes me feel better about using Spotify, because although Spotify is obviously part of the reason sales of recordings have plummeted, it does have the effect of actually making people want to go and see the artist they are listening to. Live music, at whatever level, whether it's in the O2, or Glastonbury, or at the open mic night down the pub, is what music is all about.