Oh yes, I know about the Passaic show, I even downloaded it, but it momantarily slipped my mind, I'll edit my post since I forgot about the Sidney Rumours show too. The Passaic 1975 went out from the wolfgang's vault website, the same that put out the 1983 East Rutherford show. It's a great concert.
The Largo 1979 isn't the highest quality but it's a great show and there are some versions on the internet that aren't so low grade; the SuperFleetwoodmac remastered videos are sufficient and I think that with a professional remastering the Largo show could turn out just as good as the Rosebud remastered DVD of the 35th anniversary Rumours edition. I still think this last one was a waste tough and they should have put the Tokyo 1977 show as they had previously promised.
I read that the Richfield 1980 show was filmed for television and it aired on a minor TV channel but was never released. What bugs me is that it seems that noone in the entire US thought about recording it. You can see some footage from the show on the FM Tusk 20/20 special:
https://www.youtube.com/watch?v=X-NfVY51YdE
I've read that the 1983 Landover show was professionally filmed but ultimately wasn't released because Stevie was "high as a kite". I still love it more than the Us fest video though.
I'm talking about this show:
https://www.youtube.com/watch?v=aC_QoDDJ8QU
Stevie even says at 18:15 circa "See, they're filming this, that's why I'm not talking, it's because I know I'll have to watch it later..."