I think Steem and SBD are both great investments. However, I think pocket tokens will be an even better store of value in the long run because no more will ever be created. Someone please correct me if I am wrong but I think that the production of Steem doubles every 2nd year and every 3rd year the production increases by a factor of 10. Our wise founders did this to keep people engaged in the platform and motivated to keep producing great content. By contrast these little pocket tokens will never be produced again so they become scarce and a type of digital gold here on Steemit!