Take a look at the regular 17 then. Only slightly more expensive, a couple grams heavier but it will not be as much of a downgrade from your 14PM. The 17 is very good in the hands with that screen size. And it has an aluminum housing.

The regular 17 is cheaper than the Air, not more expensive. And it has a better camera and battery and a slightly worse processor (but still better than the 14 there). The next gen Air might be worth getting but the current one is an awkward model that only makes sense if you want it for its thinness. It is $200 more than the plain 17 with only one better feature (processor) other than thinness and $100 cheaper than the Pro which has a lot of improvements (battery, camera, screen).