Ah, I miss Monterey; I'm envious of you guys who were there. The problem is, my wife has a legal conference that takes place in Monterey every couple of years... but it takes place like two weeks before the festival, long enough to make "hanging around" or returning so soon impractical.
I was there for the festival in '86 or '87 I think it was, with backstage/media creds while working on a PBS music show. It was great as we got access everywhere, with highlights being backstage for both MJQ and Ray Charles. Also fondly remember the Clark Terry and Red Mitchell duo, seeing Billy Higgins in person for the first time (damn, do I miss him!), and Bobby Shew (iirc) leading an incredible big band of young Japanese musicians doing mostly dixieland tunes.