If you treat cast iron with the same care that a non stick pan requires with just a little bit of oil it will be better over time. With those same instructions an average non-stick pan, used daily will degrade in 5 to 10 years. Iron is heavy and inconvenient, but carbon steel pans run 90% of the Michelin rates kitchens you will find. Cast iron can do much of the same work at home and, in the US is much easier to find. A 10 inch Lodge cast iron pan can be found in any X-mart. A 10 inch Matfer Bourgeat is a bit pricier and harder to source. Good luck with pan fried fish in a non stick pan after a month. Same with cooking 40 burgers or omelets a day for a month. 2 of the items I mentioned could do that easily. The average non-stick pan could not.