For something that can become a popular means of payment, you need the following:
Store of value: allowing individuals to make intemporal choices on when to spend their purchasing power
Medium of exchange: facilitating the exchange of goods and services by eliminating the inefficiencies associated with a barter economy
Unit of account: acting as a measure of value in the economic system.
Do you think the bitcoin has all three of these elements? I am looking forward to the bitcoin will become a popular payment method in the future.