[mrb]

One main appeal of Bitcoin is that it always works if you have coins on hand at this moment. You can use it for time-sensitive transactions without wasting time to purchase some coins beforehand. Want to send $50 or $50 million to someone or some company in another country? Bitcoin does that in 10-60 minutes (1 to 6 confirmations). No PayPal blocking the transaction. No unexplainably declined CC authorization. No bank account suddenly seized by your totalitarian government. Being able to pay your B2B Chinese supplier for an urgent order on a Friday evening without having to wait for banks to process wires on Monday. The list of scenarios where Bitcoin is useful goes on and on.