[size=12]Are the long griddles likewise divided up into specific series? I know that the ERIE skillets are that way, but I didn't realize that anybody had done that with ERIE griddles.
Anyway, I'd say that $30-$60 is a range, provided it isn't cracked or warped, and not too badly pitted. I don't remember what I spent for mine, but I bought it at an auction that didn't really have any other cast iron in it. Sometimes a crowd isn't too interested in long griddles.
If it has a wire bail handle, that might go up a little.[/size]