You clearly do not understand the concept of value. Would you compare a dollar bill to a number? What about 1 yen - it is the same number but worth much less than 1 dollar. Cryptocurrencies will not go anywhere, in fact adoption is just starting in my opinion.
Dollar bill is paper that represents legally enforceable claim which originated from loan contracts. Number on it is a mathematical object that measures the size of this claim. Bitcoin is a number in digital form. You cannot compare a number - an abstract mathematical object, to a legal claim - a property.