Generally, "027" is like Christmas toy stuff and as a rule, not worth much. But, like all things, there are exceptions. And with the 027 stuff, when it's an exception, it's a REAL big one. There ain't no middle of the road stuff with it. Either it has little value, or it's slam the other way......and the really valuable stuff the condition does not affect very much. I mean, as long as it's THERE and intact, you'll get a good price. Of course, if it's mint, that helps too, but the worth is still there either way......if that makes sense. I can't really help you other than that, because I never got into O scale. That third rail just didn't do it for me. But that's not to say some of it isn't worth a lot because I've seen Lionel stuff go for stupid money on Ebay. I can give you a good for instance. The girl's pink lionel train set. Ridiculous pricing.....but that's what it brings. If your stuff is old and made well, you would do yourself well to get it all profesionally appraised before selling to anyone here, or anywhere else. Just as soon as you sell, you'll find out you just gave something away.