When I lived in Philadelphia, we actually saw a lot of A-10's flying over - there's
NAS Willow Grove right outside town, and it's a large Joint Reserve Base. I
know the 111th Fighter Wing is based there and operates the A-10, I know there were a lot of Orions and some F-18's that operated out there -
presumably Navy or Marine reserves. There were also some very cool aircraft parked in front, including an F7U Cutlass.
I remember while I was living in Philly, a Marine Reserve A-4 ran out of fuel due to a leak lost it's engine over a residential neighborhood in the
town of Willow Grove. He dead-sticked it into the center of an empty intersection and ejected so late he apparently got singed pretty badly in the
fireball, leaving the aircraft just above the ground - no doubt he saved many lives by avoiding the closely-packed houses there.
Apparently Willow Grove is slated for closure in 2011 - personally I wish they'd close more overseas bases and keep the domestic ones open, but
that's getting OT...
There are also the NJ Air Guard operating out of Atlantic City in F-16's, the
177th Fighter
Wing. IIRC the tempo of operations for all these units has increased a lot since 911, I certainly saw a
lot more military aircraft over
my old NJ home, just outside NYC, after 911.