is offering here.
The $15 family plan is pretty great. I pay $10 for spotify right now, for a single user.
But mainly, I want to see some iTunes integration -- I have tons of old music in mp3 format that has never been, and won't be soon, available for streaming. I like the idea of those things sitting side by side in a well-designed format. Spotify can do this, but it's pretty clunky and poorly organized.
The thing that will win for Apple overall, though, will be artists. They're the only one with T Swift and just watch what happens when they're the only one playing the Beatles.