Steve, you are right. (I am hoping at a show I paid to enter, it may be less?). Anyone can mail items to Shelby's childrens foundation to have him autograph. Shelby will sign merchandise, photos, posters, owners manuals, etc for $100, and car parts for $200. With $15 for shipping and handling. All goes to the Shelby Childrens Foundation.
A side hobby I have is collecting baseball autographs (I have over 100 all the way back to Ty Cobb), and the Shelby price for autograph is the going rate for top (average) living players - some are much higher. Casey