This might be a winner of an idea. Imgaine a 3-month airshow tour. I'd show up and meet people. That could be fun, build the crew on the spot.
Boo
The pro is the same thing we're thining, they're right in the thick of potential new customers at these "festivals", the con though is that affordibly/reasonabley a "HTC team" can maybe attend a dozen (at best) of these types of events a year, realisticly probabley only 6 (there are many expences and often vendor fees, even with an all volunteer staff).
Maybe HTCs can team up with some of the many traveling simulator demo teams out there already, still a cost but maybe more practical. The ones I'm seeing out there are full-blown simulators on a trailer, and those cant be cheap to run/make/own. I don't think HTCs budget is big enough to fund and make such a similar and large initial investment, although maybe they can be succesful with a trailer big enough for 4 computer terminals. On the other hand, these teams/companies out there with these serious mobile flight sumulators might be interested enough to "host" virtual WWII dogfights on their simulators at these historic military air shows, and may be in a similar boat - a limited budget.