Although, living in PHL would be great, being captive to US and staying at Holiday Inns would be tough. (Just ask one of our marketing execs who frequently takes the train to BWI.)

For price, the worst has to be DL out of CVG. Several years ago, I flew DAY-CVG-SAN-CVG-DAY for less than $300 (DL). Pricing for CVG-SAN-CVG (same flights) was north of $1300. No wonder there are now services that shuttle travelers to DAY and CMH.