The value of money is correlated with the trust that people put in it. At the beginning, I was a little skeptical with the scale of adoption of Bitcoin, but after I have learned about how blockchain works, Ethereum and other digital cryptocurrencies and the possibilities of smart contracts I saw the potential that it could take in the real world, leveraging business across borders.
The early adopters of this technology will achieve great success if they can create value for people around the world, eliminating bureaucracy and being creative in the use of this technology to solve real world problems.
I think that the discussion about the real value of a currency or a digital one is related with the classical "supply and demand", and as I can see soon the demand is going to increase. The big question that remains is if with the proliferation of multiple digital cryptocurrencies, if all of them are going to have enough demand?
I think that Bitcoin is becoming the digital "gold" for the monetary system worldwide and the "market" will have demand for some of them and others will fail in becoming a "true" digital currency.