I dont know, Hummer. PHL
is so congested that it is less and less desirable for short hops to East Coast business center. Some sort of shuttle service to DCA
wouldn't be out of the question, in my eyes. Not in this economic climate, however.
Express did pretty well, and only left PNE because their overall economic picture became less rosy.
Finally, the NIMBYs have a loud voice at PNE, as it is surrounded on a few sides by residential districts (including where I played little league, just across US 1 from the airport).