@ Dirty Bass : This is spot on imo...
Can I add to this train of thought jus by saying, like it or not, record sales are the necessary bench mark for the whole industry as an indicator as to how well a particular artist is doing in relative terms to the genre of music that he/she is creating within...
Without the incentive that if someone likes a certain work of art that they are prepared to pay for it, you cannot have an accurate reflection as to how popular, shall we say, the artist is at any given time and therefore there isn't a music 'industry' to operate within...
Utopia anyone...? lol:)