Hmmm - I love flying my plane, but the reason I like Fly-Ins and Airshows is not so much looking at other aircraft, although that is fun if they are a bit unusual, but talking with the other attendees. Some will be fellow pilots/builders, and others not, it doesn't matter. That is probably why I did not get to see everything I wanted even in 7 days at Oshkosh - I just seemed to spend so much time talking to people.
The sheer variety of backgrounds, experience, and opinions was great, and I made a few useful contacts with whom I will keep in touch.
But maybe that's just me.....
Cheers,
Neil