I believe the airline is making a big mistake on Pittsburgh...Seems like Philadelphia is overload now with flights, has had luggage transfer issues, and not to mention the bad weather season...
Travellers like Pittsburgh for it great amenities...new shops & restaurants at "lower" than the usual airport gouging prices at other airports, easy gate concourse connections, lots of area hotel accommodations and close to downtown....
It helped relieve the problems when flights were cancelled at Phl, & Clt due to Weather or main issues...
While USAIRWAYS is shrinking, United airlines announced that they are bringing back alot of the "first class" ammenities that they had eliminated like fresh, hot towels, china, sundaes, etc...