Exactly. When I buy a CD, I have a physical good that is displayed on my shelf and it's going to stay with me for years, and which I can possibly re-sell. $10

Exactly. When I buy a CD, I have a physical good that is displayed on my shelf and it's going to stay with me for years, and which I can possibly re-sell. $10 for Spotify gives me a month of listening to music. But after that is over, all I got is another $10 payment for the next month.