I saw those fan club letters a while back on Ebay. I don't remember what they were going for. I never got into the whole autograph thing. It just seems like there are so many forgeries. I guess, unless you really know, like you guys, you just can never be sure.
I do have one authentic autograph by an artist called Eyedea who passed away in 2010. I got my hat signed at a show sometime in 04-05 and my wife accidentally threw it in the washer. The ink is faded. He was a really brilliant guy.