It is a fact that Bitcoin continues to operate non-stop around the clock, even when banks are closed for the weekend. This is because Bitcoin, as a form of digital currency, is independent of the traditional banking system which follows standard business hours. Instead, the Bitcoin network continues to run independently with the help of users validating transactions and maintaining the integrity of the network.
Bitcoin is cool because it never sleeps.
Modern online banking also works around the clock, so this argument can only apply to some lagging banks. I choose bitcoin not because I can't use fiat currencies in my accounts at any time, but because the bank can decide at any time if I can use my own money. And this alone outweighs most of the possible conveniences of the banking system. Well, the fact that bitcoin also works around the clock, and even adds in value against the US dollar, is just a nice bonus.