Peter, finally I put an airport out there that you didn't know about! ;) It is very small, with about 8 flights per day to PHL, and maybe 1 to DCA and one to BWI (now one to Charlotte since SWest is coming to PHL). For the few times that I fly now (not for biz anymore) I would say that they are usually at least 75% full, but they only hold 36 pax. When they oversell a full flight by 2 or 3, you are usually not going to get on standby since other pax have no alternatives.