This passage, from the New York Times, about says it all:

"Question to our Keystone State readers: What is it with this Pennsylvania fetish for bizarre world food combinations? In Johnstown, this New Yorker encountered the artery-clogging prospect of cheese-fries. And here in this diner in a perfectly lovely corner of this Berks County we come upon the Marvel Mess, a sandwich combining eggs, potatoes, onions, cheese, green peppers and Shiva only knows what else. (And in Philadelphia, my college son Nick tells me they serve up a sandwich called the Roethlisberger, named after the Pittsburgh Steelers quarterback, which sound so utterly and purely disgusting in its bouillabaisse combination of mystery meats and cheeses and coarse spices, as to induce a stomach-throbbing ache just hearing of it)."

Answer for our New York friends, what are you talking about? Last I heard, it was possible to get cheese fries in New York.

I suppose Pennsyltucky is a like a foreign land to our brethren in New York. Hey, we even speak English. Well, sort of.