Philadelphia area flyers should not feel alone in this situation. The exact same thing happened in Cleveland, supposedly one of their stronger stations. And unlike Philadelphia, there is no dominant carrier here.

I personally would only consider getting the Go Wild Pass if I lived near other airports that they serve, so there might be backup routes you can use to take full advantage of the Pass. I know there's a few flights out of NYC, so between the Big Apple and Philadelphia you could probably get the full value's worth of the Pass if you don't mind a little extra travel getting to the airport.

I am 1 hour from Cleveland, 90 minutes from Pittsburgh, 2 hours from Columbus, and 2 and a half hours from Detroit. I have no interest in the Pass myself, but I would consider it based on my good location to options other than just Cleveland.