I used Greyhound (and their codeshare partner Peter Pan) in March to get to the Philly DO from NYC and was pleasantly surprised by the journey. It was a darn sight quicker and more convenient than schlepping myself over to an airport for a flight and the ticket cost me the grand total of $38 RT. Yes, my seatmate was a smelly Mexican laborer who spoke no English and hadn't showered in a week, but can you honestly say that you don't get folks like that aboard planes?