I'm a Deadhead, and have been since way back in the day. I went to a bunch of Grateful Dead shows, including many of their fabled New Year's shows, both stone cold sober and also tripping my balls off. Pretty much a magical experience every time...
While I was a Deadhead, I never had a "Deader Than Thou" attitude. I liked lots of other music too, and I never chronicled every show that I attended, etc.
One really fun and memorable show though was at the US Festival in 1982. The Dead kicked off one of the days of the 3-day concert, with a session that was referred to as, "Breakfast In Bed With the Grateful Dead."
One of my favorite Dead songs is
"Estimated Prophet" - I have to play it every time I return home to California after traveling abroad...
Oh, and if you have never tried Ben and Jerry's "Cherry Garcia" ice cream, you are missing a treat...
ADG