I remember as a kid growing up with a set of cast-iron frying pans and what a nightmare they were to clean because everything stuck to them like concrete. I occasionally listen to, John Hodgman's, podcast and he is always raving about his cast iron pans and how much he loves them. Apparently they are, "seasoned" which from what I gather means they don't ever actually clean the grease off them so there is always an old rancid layer that acts like a nonstick layer? Maybe I am wrong about this but I would rather stick with my Teflon personally.