Absolutely. The rust belt teams are where football was born and bred and where football loyalty will always come first.
People in LA, Dallas and Florida care more about liquor, beer, and who they're ing that night and they neglect the actual game. Not the case in Pitt/GB/PHI/BUF, even CIN/CLE/IND and to a lesser extent MIN/CHI/DET. Like Cris Collinsworth once best said it, even the ladies of those fanbases know their football down to the finest detail.
The Patriots and the NY/NJ area teams are in their own category because they're full of ty bandwagoners. They're not rust belt; they're just big cities on the east coast.