Streaming is where it's at. Spotify has it down. The thing is, music is disposable nowadays. Instant gratification then you move on. Face it, the tweens through college kids are the bulk purchasers. You can only listen to "Call Me Maybe" so many times before you never want to hear it again. It's the old top 40 format on steroids. Play it often and repeatedly while it's fresh, very rarely revisit it.
For me this is crazy, I want to own my digital purchases. I want them to exist locally on my device.
College kids don't think this way. When I'm on campus, they are happy to pay a fee to get exactly what they want right now and play it repeatedly, then move on to the next thing. The $10 Spotify buffet is in that sweet spot. If heaven forbid, there happens to come a day when you want to hear "Fancy" just one more time, you'll queue it up on YouTube.
Music has changed from the long album format of a collection of related works, to one off singles. It's changing again to disposable pop drivel. For the price of Spotify that gives you everything, you could buy 7 or 8 iTunes tracks to keep. That you'll probably never listen to again after this month. That's not value. Pandora and iTunes Radio with limited choices and limited skips? Also a bust. Spotify is a steal.