A great historical Victorian hall on a hill in the middle of parkland. The Wall of Sound, Phil & Ned, twirlers and a central rose garden. Site of the 14 Hour Technicolour Dream, April 1967 - what? Look it up.
The Warfield Theater in SF was pretty fine. Lovely old art deco movie house Bill converted into a Rock Palace. Cal Expo at night with grass under my feet, perfect weather and billowing white clouds filling the sky was memorable. Of course Red Rocks, and the Frost can't be forgotten. Winterland was my beginning with the band, so there's special memories, and I loved the Berkeley Community Theater, too. Grass Valley CA was a fine woodsy outdoor venue in 83, also.
It wasn't the first place I saw the band, but to me, SPAC definitely had the best vibe of the various New England venues where I saw them. The summer 1985 show was a crazy good time, and 1988 wasn't too shabby either. I liked that the venue was in a state park where the freaks could frolic, both before and after the show. I'm also glad it's still around, and well kept for future generations to enjoy.
I was there with a bunch of friends from Philly. I remember lots of great acid and fire hoses cooling down the crowds. Got the official Electric Factory poster 30 years later at a RATDOG show.