To me spending 10$/month seems about right - in former times I would probably have bought one CD per month on average. However, I think what might confuse peop

To me spending 10$/month seems about right - in former times I would probably have bought one CD per month on average. However, I think what might confuse people in terms of perceived fairness is that with a flatrate, people might listen to a lot more music. But it is a tradeoff between people listening more but paying less per song and people listening less and paying more per song. It's a mistake to think "whoa, if I had sold as many CDs as people listened to my songs on Spotify, I should have received x million $$$." The reality is people probably wouldn't have listened as much without the flatrate. So in the end all that matters is how much money you receive, not how many times people listen to your songs. And what have you gained if you limit people to 10 songs per months vs thousands, if they spend the same amount of money? It is only an inconvenience for the audience.