The way I'm kind of seeing it lately is that there really aren't any bad steels, except the old style chinese bullcrap that's made for liners and what not. Once you get above AUS 8, 12C27, 8 or 9cr,420HC, etc., they're all great steels. Just because 420HC needs more attention to keeping a sharp edge than 20cv doesn't mean it's an old haggard out of date steel. They all have their own areas where they excell in, to different degrees. And just because say a folder comes only in 12C27 doesn't mean it's a crappy knife. It just means that you'll need to spend more time with it on the stones, which will probably end up making you more skilled at sharpening furthering this hobby of ours.