If Apple Music was cheaper, maybe they would sell more. I mean sure, Apple Music is great, but I'm doing just fine without it. But I would consider it if the price was lower. Yes the price could be considered low by some people when you look at the value, but I have to look at all my different subscriptions, and it sticks out as higher than the others.
For one, the curated playlists and radio stations are garbage. It seems like Apple has some deals with a few artists or labels and shoves them down your throat. Their recommendation engine is terrible too, it's just another way for them to promote these artists.
The front page of Apple music is often filled with hip hop and pop artist garbage as well. I don't listen to this, I hate seeing trashy looking hip hop artists and empty-faced pop divas every time I open the app. In Canada, they have an entire section dedicated to Francophone music. This isn't Apple's fault, our government requires it, but it's just wasted space for me, I don't listen to french music, give me an option to hide this crap.
It does one thing well, and that's it: "I have a song stuck in my head and want to listen to it now". Even then, I find myself going to YouTube more often than not.