Recommendations and playlists.

Spotify isn't primarily about playing music for me, it's about finding new music to play.

And Spotify's just where all of that is. The quality of the radio recommendations, the fact that there's always a playlist for every TV show soundtrack, that artists put together their own playlists, the quality and variety of playlists overall, and it's where cool people I know create and update their public playlists.

None of the other services seem to come close in terms of that. I see links to Spotify playlists all over the internet. I don't think I've ever seen a link to a YouTube Music playlist?