I’d disagree in that you can buy an MP3 and listen forever using whatever device. But Spotify isn’t required to sell you MP3s (or guarantee perpetual playback).

I’d disagree in that you can buy an MP3 and listen forever using whatever device. But Spotify isn’t required to sell you MP3s (or guarantee perpetual playback). And, it turns out, that people (in aggregate) really like the Spotify model. One fixed cost to consume all the music you want vs buying entire albums to listen to the 2-3 songs that were decent. There are still two markets in music. That’s not the case with most online services, but I’m comfortable with that.