I fry a fair amount of eggs over easy on my cast iron and get good results so it's definitely doable. I think preseasoned cast irons are fairly cheap these days

I fry a fair amount of eggs over easy on my cast iron and get good results so it's definitely doable. I think preseasoned cast irons are fairly cheap these days although I picked mine up on Craigslist with a set. For the most part, cleaning the cast iron is two seconds of chain mail scraping under the faucet because not much really sticks to it and there's just the small leftovers that weren't worth scooping, then I put it on the stove for a minute or two while I wipe up other things and just let the water evaporate off so it doesn't rust.