JO admitted in a recent new-hire luncheon he'd have to offer more attractive FO rates IF the upgrade wasn't so quick. I don't know if he was pandering to the new-hires or being realistic about what it'd take to get more people in the door if upgrades slowed, but I'm sure he'd love to keep this expansion-with-low-labor-costs thing going for as long as possible. And that's the irony - once labor costs go up flying goes away.