Dan (not his name, btw, I can't remember his real name now) had a very nice collection which made me green with envy when I started collecting. I printed jus entire website, which I still have, and it was quite something. Only 70s on stuff, but some really rare items. I think it is the only collection of posters that I ever coveted, probably because I was starting in the hobby and didn't know where to find the rare pieces in his collection.
He also did some amazing identifications, way way better than the other guy who erased his pictures from our forum.
I think he sold most of his stuff since I ended up buying quite a few pieces. And then he disappeared. He only lives now in my memory.
T