Time has changed and Bitcoin users evolve and find something that makes it profitable aside from being just a new form of currency. Though some people are still using Bitcoin as a payment method, some as livelihood, long term investment and anything else that can be possible with Bitcoin.
The OP actually doesn't have to bother to find out many thing that can be done with bitcoin. We have never even been restricted from using bitcoin on the many thing that are supported by its users. For those who do not really believe in the banking system, bitcoin has been the right choice for them. I don't even need to queue in bank room just to send money to someone who want to accept bitcoin as a mean of payment and I can also do it when all the bank employees are resting. If you want financial freedom, bicoin is the choice because it is completely decentralized.