Amazon has just launched its long-awaited Spotify competitor, Amazon Music Unlimited. Like Spotify, Apple Music, Tidal, Google Play, and Deezer, Amazon Music Unlimited offers on-demand access to tens of millions of songs. And like those services, it also offers “thousands” of “hand curated playlists” and personalized stations. So why would anyone want Amazon Music Unlimited? If you’re an Amazon Prime member, it might come down to price.