My brother lives in a million dollar townhouse in Society Hill among people making that kinda money. You don't know a thing about Philly, but you did say very obviously that wealthy people in Philly live in wealthy parts of Philly just like every other place in America. We also don't really have McMansion suburbs. I mean like an hour away, but people with that kinda money don't live there--they live in the inner ring suburbs. Nothing in the Philly area is 'walled'. We barely have developments. We have one where I grew up and there's no gate or wall to get in.
I rented in the city for 11 years. One of my neighbors played for the Sixers ($41M net worth). Another neighbor founded Urban Outfitters (nearly multi-billionaire).
We have enough of a track record to show that coaches can win here. We have enough of a track record to show that players can be successful here. Despite the fact that we've been very, very down for 5 years, we still have more NFL players than you (over twice as many in fact)