Tires in general are not as cheap as they once were, even for our daily drivers. My Son Don was just telling me he had trouble finding regular whitewalls for his daily driver because tire dealers are starting to carry onlly blackwalls. They had to order the whitewalls in special for him. I hope whitewalls don't go away as I will be needing a set for my daily in the next few months.
As for wide whites, I watched a guy at Billetproof a couple of years ago who went around with a tire grinding machine and was doing peoples tires for them right there on the spot. They came out pretty good looking too.
In about 1964 I worked at a Ford dealership and every week a guy would come in with one of those machines and create whitewalls on the used cars for sale on the lot. Cars with whitewalls were worth more and sold better, so they had the blackwalls turned into whitewalls. But I hadn't seen one of those machines until Billetproof. I think he charged the guy something like $125 for all 4, if I recall.
Don