I don't think anybody said newbies had 70% of the tickets. The statistic that was shared was that 40% of the people who registered took the time to check the box that said they had never been to Burning Man before. Some people blew off the survey and either didn't answer or didn't answer truthfully (for whatever reason). Actuals could be lower, and also could be higher, but that percentage represents a significantly larger proportion of first timers in the mix since the 1990‘s. Anecdotally it's also worth pointing out that we've seen a massive surge in new members who are also first-timers, plus turnout at events (from the burnal equinox to participation faire to the recent picnic and even random events and parties...a lot of awesomely excited new people.
Overall, there was about a 1/3 success rate with the main sale. That's because there were registration requests for 120K tickets for 40K supply. Follow along and do the math with me, 40,000 divided by 120,000 comes out to... 1/3. And yes, that 120K is after the registration process had bounced out quite a few scalpers. I'm sure a few squeaked through, but based upon the number of tickets being scalped for other 'hot ticket' events, only a very small percentage of the ticket supply went to ticket scalpers. I'm not sure if your sales and marketing job has taight you any market analysis skills or if you've considered putting them to use over the last few months, but the analysis I've done seems to support what I said above.
As for the rest, it really has been discussed to death in numerous other threads. If you simply reject it, or can't be bothered to read or understand it, I can't be bothered to go over it again. The truth is out there, Sculley, even if you don't want to believe it.