It seems like cast iron fails on electric cooktops, or in the case of much of the thin modern cast iron cookware. In an effort to keep weight down to compete, they ruined the product. Gas flame mostly solves this, but is increasingly uncommon.
So I pretty much just use the one Wagner pan, manufactured before 1996.
The nonstick PTFE coatings on my other cookware has always come off after a few years of use. I can't refresh the coating in my own kitchen, so the pan is basically useless after that. So I'll stick with the polymerized vegetable oil seasoning, even though the cast iron cookware is not as idiot-proof as more modern cookware construction. I like being able to keep something for 20 years, and not have to continually discard and replace crap that's not even 5 years old.
It would be nice if I could laser-sputter AlMgB14 + TiB2 onto a 12" round BAs wafer, and cook on that, but that's not likely to happen in my garage--or anywhere else with an oxygen atmosphere.
Could it be an issue with an induction-type electric cooktop? I never tried cast iron on one of those.