I certainly agree that the "Slabs" are more abundant than both "Fusies" and "Formals", at least around here. I am seeing quite a few "Slabs" cruising the streets around my area, but I've only seen two Formals at cruise nights in the past five years. I've also seen a couple of Formals, both of them were Chryslers, for sale. One of them was so rusty I don't know if it would even have made a very good parts car. As for Fusies, I rarely see them at all and I never see any for sale, except for a '69 300 convertible that was sitting on an antique dealers lot. The car looked like it had been sitting outdoors for years, if not decades. There was no engine, no roof, the interior was toast and there really wasn't much of anything to save. It's gone now. I don't think anyone bought it. He more likely gave up and sold it for scrap.
I did see a couple of "Fusies" at the cruise nights last summer. One is a local '70 Fury 2-dr HT that is owned by a younger guy. He is trying to save it. He's already installed a new vinyl top. It still needs some body work and some interior work too. The other one was a Newport 2-dr HT with Saskatchewan plates.