Same old, same old?
The other point is that the venue and format has remained the same for so long. It's the same arrival procedure as Aero-Expo at Sywell, so twice a year (and less stuff to see at LAA) means I'd go to Aero-Expo by choice.
But if they could re-open something like Wroughton, I'd go again, just as I did last time. Different venues will increase the interest. I'm sure there are new destinations people would want to visit. Do LAA read these forums?