Hopefully if KA starts flights to SHA they will make it easy to swap an ex-SHA departure for an ex-PVG departure. SHA much more convenient location (if you have a car waiting.. taxi queue is terrible), but the timing flexibility offered by ex-PVG due to all the flights is great.

Like a lot of frequent business travelers to Shanghai, I value the opportunity to hop on an earlier to later flight home to HKG with very little hassle. Sometimes getting home 2 hours earlier makes a world of difference..