Just prior to the Mercury program, the "hottest" pilots such as Yeager, Crossfield, etc., were content to be flying the X-15 and other high-performance aircraft, and wanted nothing to do with Mercury's "spam in a can" approach to spaceflight. They held out even after the Original 7 were chosen, but it soon became apparent to all that getting to play Buck Rogers depended entirely on where the bucks were going, and that was to NASA and the moon. Since then, getting assigned to Houston has been the hottest ticket for any test pilot/fighter jock, because it's where the perceived action is, Wolfe's "top of the pyramid."<br /><br />Between now and the beginning of the CEV project, NASA will lose a lot of senior pilots and a ton of mission specialists, who will be too old for returning to the moon. The moon pilots and specialists are now coming up through the ranks of test pilot school and flight ops, as well as doctorate programs at science and tech universities. A NASA assignment will still be the hot ticket -- it's where the action is and the bucks stop.