John F. Purner is author of "The $100 Hamburger: A Guide to Pilots' Favorite Fly-In Restaurants" and "The $500 Round of Golf: A Guide to Pilot-Friendly Golf Courses." His $100 Hamburger Website was awarded the top rating from "Plane & Pilot" magazine. Mr. Purner is a pilot and plane owner, an attorney, a computer industry executive, and a marketing consultant. He lives in Longwood, Florida.