Spotify changed the behavior of the whole world w.r.t music.
They made an experience so much better and easier than buying or pirating music, and collect $10 / person / month forever for it.
They also made the platform developer and human friendly. I was able to build a totally custom UX with offline listening capabilities for my app:
Their model, service and platform is not without flaws but thanks to Spotify, me and my friends get to legally enjoy more music day in and day out than ever before.
Thanks, and keep taking my money.