No, I have a Megadeth T (Killing is my Business) signed in like, 95, and it's been washed so its the same consistancy of tissue paper - but the signatures are still easily visible.
It was really just an excuse to get to talk to Martin Walkyier on Thursday for a little while. He seemed like a really friendly, down to earth kind of chap, to be honest. Also got to talk to Simon Jones for a bit, who was a really, really nice bloke.
Martin Walkyier is tiny though - I felt like Gulliver stood next to him!