RK,
I guess it's like getting g/u gear signed. Some like it, others don't. I can't really explain why, but I go back and forth about equipment autographed. For example, I don't want any of my photomatched things signed.

If I had your seats though, I'd leave them as they are, gum and all. I've got a pair of seats from Atlanta Fulton-County Stadium that were used from 1966-77. I've thought about trying to get Hank Aaron to sign them. Cost of getting that done aside, I've now convinced myself that doing it won't make me like those things any more than I already do.

-Jason