Well I don’t own an airport, but if I did it would be free.
If you're feeling sad about waiting a year until next Congress, can I suggest RUNNING YOUR OWN?
It doesn't have to be big, and there's clearly plenty of demand. People love these events. If you're in the UK drop me a line, I can help.
The two hardest problems in Computer Science are
1. Human communication
2. Getting people in tech to believe that human communication is important