Oscar revealed there are several reasons that make the digital currency is different from the conventional version. One reason, because BitCoin and other digital currencies take advantage of a system that runs independently of a centralized server. The entire server is decentralized and all transactions are verified automatically without human intervention.
That is why it's more transparent, no one can manipulate the blockchain record and bitcoin is a new revolutionary currency that should be enjoyed by everyone. People can use it as an online transaction as payment processor and they can also take advantage of the increase value by investing with bitcoin, I think it gives good benefits for users regardless of the purpose we have in mind.