I guess it should be use as a form of currency in the near future..where you can buy or sell goods/items using Bitcoin...Buy tickets locally/abroad...thats my vision in the future for crypto currency!
There is no way that we can deny this fact that crypto currencies like that of the bitcoin holds much brighter future and that they will surely be able to make some significant name in in the international market and there will be so many places where you will then be able to use your crypto coins and that the need of keeping paper money with you will no longer be needed.