I've attended about three-quarters of the shows since 1968, first as an enthusiast, then as an interested industry professional including several shows as a exhibitor, which were fun, particularly the time I flew on board during the flying display (before that was stamped on). For the last 20-odd years I've alternated between attending as a trade visitor, watching the flying display over the fence and, most recently, failing to summon up the enthusiasm to do either.
I haven't been this time around as I know I'd have been bored to tears. Though if I'd known in advance about that Hercules display ...