It is crucial that token be on decentralized networks. Those that are centralized are not really blockchains but just a different form of a shared database.

There will be a ton of tokens that do not get used....that is what is awesome about it all....people choose what tokens they want by the network they desire. As I wrote yesterday, Steemit is the flagship app on STEEM right now....there might be a better interface a year or two from now....who knows.

People get to decide which gives it the value.