Authors get a small number of books to give away — most go to family, obviously.
Today, in Scottsdale, I gave away a book to someone who is decidedly not family, but who asked for a copy.
Unwritten rule: You do not refuse a request from the Commissioner of Baseball.
-Michael
The Baseball Codes 
When I was growing up in Milwaukee, Bud Selig sold used cars. In fact, he still owns an auto leasing business. He also made over $18 million last year. He can afford to buy the book. I hope the copy you gave him wasn’t autographed. =’.’=