If I consider myself, I've never spent even half of the 120€ a year on music as I now do with Spotify. I'm fairly sure that my case isn't that uncommon with others of my generation, born in 80s or later. A big part of this generation has never gotten into buying music and it seems Spotify is a way to get at least some revenue from us. Nobody outside Spotify and the labels owning it knows the exact details of their finances, but I doubt they're going to disappear, at least not the business model. Otherwise our generation just goes back to pirating.