WRONG, it is still a MEET. You have to pay dues to join.
Eddie is correct; it is a train MEET. One visit, and assuming you get around to other train events around the country such as WGH, Trainfest in Milwaukee, etc., you'll rather quickly see the difference.
Meet, Meet, Meet, York is a Meet. I've only been twice, and I have been to several "shows", there is a big difference(by shows I mean Greenberg's & World's Greatest Hobby here in NJ) and there is a huge difference. While going to shows you may know a few people here and there, and engage in conversation with those you know. York is by far a whole different experience in every way shape and form.
While my time spent going to shows, I probably only know 3 of the dealers(people) there and can talk to them like one normally would. At York it is far different as you seem to be able to talk to everyone regardless if you are buying or just chilling, and that doesn't even include breakfast, lunch or dinner(as they may be off site).
I always have a blast chatting it up with people at every booth(especially the OGR booth). I got great pictures my first show the crew and our favorite retired Rich Melvin giving me the evil eye as I said autostoker(you had to be there).
Anyway, it is like the difference between chicken and steak(whichever you prefer).