In 5 years time, will we be listening to CDs? MP3s? FLAC? LPs? Spotify?Who knows. Nobody really does.
Sod the format.
What are well selling, a round bit of plastic or a piece of music? The next 5 years will be massive, I think. Whether we are still set on selling an edition or whether we focus on an experience, one thing is for sure - we'll still be listening to great music, so let's get on with that and be prepared to roll with the changes.