I've a 500ft roll of 5" Polycontrast IV in the fridge. Once I figured out how to work with it, I just plain love it.
I work at a one-hour photo lab/supplier and we have a bit of polycontrast but..
my boss wants all of the b&w photo stuff out of there. There's no money in it.
He's got bags of dektol from five years ago just sitting on the shelf.
It's sad. I love black and white photography. Losing options is what scares me.
Hand-coating glass plates and kallitypes soon for me.