In the eyes of economists, it is difficult to assess the value of Bitcoin. With the existing economic model evaluation, there is no reference, bitcoin can not see intangible and there is no statutory credit support, unlike gold can be considered from industrial use, jewelry, central bank reserves and so on.
Bitcoin is open source. Anybody who spends 2,000 yuan can copy the same bitcoin system. A full name can be sent by changing the name of a street currency. What is their value?