I think the flaw in sailings thoughts is time and patten bargaining. At first blush what he said is true. But, after we monitized PS...the other carriers came along and demanded Delta or better rates....so they capitalized on our monitization. So, now fast forward a coupla contracts with pattern bargaining and Delta pay will equal AA and UAL. IOW...other carriers reap the rewards of us monetizing the PS. If your time frame is 1 possibly 2contracts....you are prolly money ahead on the switch....if you have multiple contracts I'd stall with the current PS. The bigger negotiating gambit is who( which carrier) settles first...in an improving economy..I would rather not be first
Additionally...straight line pay rates shine like a beacon and even the most inept Wall Street guy can parse the cost.....PS is much harder to cost out consequently less damaging to stock price.....we may not care....but the exes do