> From what I understand, they actually pay based on how many times a song is played,
Yes, I should have been more precise. Just like with a radio play, the second play in theory goes to the same mass of people, but is counted again. So I should have said "they know exactly how many people and how many times it was played, and pay accordingly". I believe they discount multiple plays from the same person, to prevent abuse.
> In the old days of purchasing music, it didn't matter how many times a person played the disc/track - it cost the same. You might argue that each play represents the marginal utility to the listener (and should thus be the basis for compensation), but I'm not sure that's entirely true.
You might argue that, but you might also argue that when you bought a CD, you bought 10-15 tracks, even if you only wanted one or two. So again, for a consumer, Spotify is more fair, because you only pay for what you consume, and artists liked the old model where you paid for 15 tracks even if you only wanted two.