“Memphis to St. Louis on a greyhound bus sounds like a tough clientele.”
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(ANY inner city) to (ANY other inner city) on a Greyhound bus sounds like a tough clientele.
Here on the east coast, we have the Chinatown buses. Chinatown to Chinatown, starting in DC, then on to Philly, New York and Boston. It's just $35 round-trip, with mostly immigrant passengers who, being Asian, are focused on their own mission and don't bother you. Many don't even speak English yet, so a couple of bows and smiles and whities are tolerated well enough.
The buses are older, but so what? They run. In DC, Chinatown is over near the 7th St NW entertainment district. In Philly, Chinatown is smack next to Center City, with an inexpensive city parking lot near 10th and Race. In New York, it takes you into lower Manhattan through the garment district and lets you off in Chinatown, which is next to Little Italy. Lots of fun!