You would think that! It turns out that when every artist, label, publisher, and retailer under the sun has the same idea... discovery isn't actually any easier

You would think that! It turns out that when every artist, label, publisher, and retailer under the sun has the same idea... discovery isn't actually any easier. All you get is noise. There was a huge and diverse ecosystem. It's mostly gone now. This for the most part works better for users, which is why that old ecosystem is mostly gone. As a rule, users don't want to bounce between five or ten or twenty sites to find what they want - users prefer one or two. More specifically, there's a huge number of startups hellbent on being that someone. I've personally had contact with several. That you didn't know this is an excellent comment on how big the perceived opportunity actually is.