[bckygldstn]

By mess do you mean scratching the glass surface? My ~$15 lodge cast iron has been fine on the electric stovetops in my last 3 apartments. They weren't super high quality cooktops either: the last nonstick pan I owned scratched the crap out of one of them in a matter of days.

I don't move the cast iron pan around a lot when I cook, but they're too heavy to do that anyway really, and unlike some thin stainless pans they don't warp so won't "walk" around the surface.