Australia seems to be an awesome hotbed of crypto-goodness. Exciting times for everyone. Imagine the following scenario. You're booked on an "economy class" flight from Brisbane. That's in the morning when you wake up. Then, during the day, the price of crypto goes crazy. By the time you arrive at the airport, the size of your Steem account has gone up enough to afford an upgrade to business class or first class. You make a quick transaction on your mobile phone and then walk right up to the ticketing counter of your airline at Brisbane Airport and pay for the ticket upgrade with Steem...