It grows in Pa. Price has been down the last couple years. Guy I know use to pick it, he made a ton of money at auction in west virginia. I know of a couple patches but I never pick. I'm more of a Morel man myself!
I see said the Blind Carpenter to his Deaf Helper as he picked up his Hammer and Saw!
When I picked in the 1960s the root was not sold green, it had to be dried before it was sold. Maybe that has changed, or maybe they just left that out for the tv show? I dont know, but the show gave the impression that you could just bring it directly from the woods to the dealer and he would seal it up inside a fiber drum to ship it to China. I cant see that working out very well, I'd think it would surely rot and end up being worth nothing.
I have lived in Pennsylvania all my life and either didn't know what I was looking for or that it wasn't in my area but never saw it. I did send to Johnny's Seed and bought some seed. It needs to be planted correctly or it won't grow. I finally got some started and this will be the third year but it is growing very slowly. Fur Fish and Game has the root up near $600 per pound, But that is the price of the dry root. I don't think you will get rich and there are now laws about digging it and reseeding it when you find the wild root.
My grandfather and I used to dig it when I was a kid.I forget all the particulars about where it grows the best.We used to dig a small bag most days we went out but it takes a pile of dried root to make a pound.