i am not an economist nor ''someone who is educated about finance''. But i may say that; when we try to figure out ''what is steemit?'', we mostly pronounce the world of '' ...an ecosystem''. Just like the real world living habitats. So, it is alive and contracted from value by its users. Even the user number is under 1M this value increase day by day. And i am sure it reflects to the price of SBD. After increased number of user this ecosystem would be more valuable than ever and it could make the price of SBD too high thn 1$.