Today failed to kill me.
I've learned the difference between being in the booth as a Demo Monkey and running tournaments:
When running tournaments, I can actually spend some time sitting down.
There are other differences - in a demo situation, I have to teach from scratch. In a tournament situation, it's assumed that everyone knows how to play already. In fact, I was only called in for rules questions a small handful of times the entire weekend. Because nearly everyone knew what they were doing.
So with the tournaments, I deal with more people, but there is less interaction.
I actually prefer the interaction.
My wife hit on the Best Thing Ever this year - and I have zero idea why we hadn't thought of it sooner:
We spend hours talking and talking and talking. Cough drops help soothe the throat.
It's also possible (probable even) that she'd mentioned it earlier and I'd somehow missed it.