That is true, it seems to me (may not be true) that there is less of the showcase fly bys of experimental and vintage. Frankly, I'd rather see a few more of these.
Our antique boat show has an interesting thing. You attend what is the equivalent of the OSH flyby briefing, get in line and cruise by the crowd. You've already submitted a card with info on your boat to the announcer (we hold up numbers as we approach but airplanes already have these nice numbers on them for identification).