I'm going to be attending the Expo the week after next, and am thinking of bringing along an old Ralph Greenleaf signatured cue stick I own. I'm somewhat leary though, and am wondering if it would be a mistake to try and sell it there. Are there vendors that will be buying items from the public. I have never been to one of these events before, and am not aware of what goes on at these venues. Or should I just leave the cue stick at home.