Hmm. I don't know how many other Zappaphiles there are out there, but I was introduced to him back around 8th grade, and listened through college. He was great in concert, and I wish he was still around.
One of my favorite Zappa stories was about a Mongolian vocal group from the Republic of Tuva, named Huun Huur Tu (sp?) which performed 'throat singing' similar to the Tibetan monks. While they were in California on tour they were asked what they'd like to do. They found out that Zappa lived nearby, and immediately wanted to go visit, since Zappa's something of a celebrity in Tuva! They dropped in, and Zappa had a jam session in progress with The Chieftans, so they all joined in - I wish I'd been a fly on the wall, to have seen Frank Zappa, The Chieftans, and Huun Huur Tu all playing together. Somewhere maybe there's a recording...