It's not just decentralization that gives the market what it wants. Napster was peer-to-peer but they aren't still around. Instead Spotify and Apple are hiring like crazy and giving the market what it wants including social networking, curated playlists, discographies, etc. As these technologies converge innovators will always be able to benefit from the new cheap technology and offer something new. Blockchains alone won't solve this. It will just pace the way for some new product to come to market.