I LOVE my cast iron skillet.
It was old when I got my hands on it. Really old. Like my parents got it from their parents, and THEY don't remember how they got it old.
I really love how it's non-stick without any chemicals or other coating, just with a little cooking oil after each use and scrubbing. And I don't think I need to list the other things I love about cast iron -- even heating, etc., etc.
The thing is, I have always wanted to buy other cast iron things -- dutch oven, maybe a paella pan, maybe other stuff. But all the non-enameled cast iron stuff I see today seem to have very rough surfaces. The old skillet I have seems completely smooth except for a couple of ripples in concentric circles that I can barely see. Even Le Creuset's VERY expensive non-enameled stuff feels very rough.
Is mine smooth just from many decades of use? Seems unlikely to me, but maybe I just don't know...
Or does someone make cast iron stuff that is smooth that I have not been able to find?