Apple Music is the only thing holding it back for me right now. It's still a long way behind Spotify at the same price point. I have tried to switch multiple times but keep coming back.
For many of us, Apple Music is good enough. I just don’t care enough to bother with Spotify. If it matters to you that’s great. I’m just pointing out that a lot of us will go with the default if there is no compelling reason to add something else.