Perhaps, but many of the other older American brands are close enough for someone now wanting to pay the inflated price for vintage Griswold.
I buy brand new lodge and "convert" it to vintage. That means a ton of time with an angle grinder and sandpaper, smoothing the awfully rough factory surface. It's not a good return on time investment-- I have several hours in each piece. But the result is that I have some Lodge pieces less than 2 years old that are slick smooth and can fry eggs without sticking.
Most factory cast iron is super rough now because the surface must have "tooth" for the factory pre-season process to work. Otherwise they get runs and drips in the surface.
Seasoning process is important, but surface finish more than seasoning will determine the non-stick quality. That's why the vintage Griswold, BSR, Erie, etc are so desirable.
If you want REALLY good cast iron that is heirloom, you have to look outside the Lodge or Vintage options.
The best ones around now are:
-- FINEX, made in USA and absolutely stunning quality.
-- SOLIDSTEKNICS-- made by picky Aussies to be as good as it can be.
Both are very expensive, but truly lifetime-grade pans that come out of the box with both good surface finish AND good seasoning.
I'm basically set on cast iron now, but I'd love to have a 12" FINEX!!
i do the same thing with new lodges but i certainly dont have hours in each one. I use a palm sander. First with 80 grit and then 200 grit. 10 min tops. Smooth as glass. I only do the insides though. No reason to do the outside.
I havent bought any finex. I dont like all the angles. I did waste some money on borough furnace. That thing came rough as a cob. I like the company and i love the long handle but i had to use the palm sander on it. It's slick now but i shouldnt have to do that to a several hundred dollar pan!