I sent her an email last year asking for an autographed picture for my daughter (a glider student and huge fan) for her birthday. I offered to pay whatever was customary. I got a one line response: "We'll take care of it." On my daughter's birthday, she got several posters - all signed w/Happy Birthday, some patches, pics of her airplane, a promotional video w/an interview and another video of Patty flying. And, no charge.
I wrote to thank her and she said to make sure to bring her by to say hello in Dayton. First class lady in my book.