I'd be curious to know of all the FTU/Chicago Seminars etc.:

1) how many paid attendees
2) what percent of the attendees have never been to a class/seminar
3) what percent of the attendees is new to travel hacking/points etc.
4) of the new attendees, what percent said they learned new info
5) what percent of people would return to another one if they knew the likelihood of learning anything new was very low
6) how much to pay to have Eightblack lead a class, or well, basically tell stories...