While a decent freeplay area isn't the main goal of a pinball show, it's sort of a minimal expectation. Imagine going to the chicago auto show, and most of the cars are behind red ropes, and when you confront them, they say "well if you wanna check these cars out, go to a dealer". Also it's hard to count many of the pins in the vendor hall because while they might be on freeplay, when they're tucked behind tables and nobody is playing them I assume they're there for show.
I liken whether a show stands out to the mentality of how robert irvine talks down unsuccessful restaurants that serve worse food than you can make at home. "Why should I pay $12 for a bland hamburger when I can go to another restaurant that does it right?".
Pinexplosion - Terry is selective about what pins get in. he would pick an obscure C title over an addams family or a twilight zone because you can play one of those almost anywhere. He jams good music, lowers the lights, has a fog machine and laser lights, jay brings his crazy creations, it's a PARTY
Clay's Ann Arbor show (not to plug it anymore than Clay has already) - TONS of games from every era, bat games, cool envoirnment, headphone jacks in many games so you can hear them (and he sells cheapies in case you forgot to bring some), large staff that keeps on top of games that have issues (so games are never down), and you get to meet the man that has practically written the book on repairing and restoring pinballs.
MGC - from what I've seen, games don't get pulled early (unless they sell) because everyone is having so much fun, and because 3 days is a good sweet spot.
I don't know what show it was (SFGE?) but they had a room where 8-bit video games were setup in a living room that was decorated like the 80's, that is out of the box thinking! Maybe setup a section that is only 80's pinballs, and the portable walls are decorated like an 80's arcade. Maybe even have staff dressed in 80's clothing so you really get that vibe.
It's probably hard to look at Expo from unbiased eyes when you've been running it so long, but for even someone like me who has only been going to it for 3 years now: Walk in, same flintstones and hercules pinball (like clockwork). I suppose as long as you have the space, why turn them away, but I think everyone has played those by now. Same confusing website (maybe make an excel sheet with rows representing rooms, and mark the rooms red in the times they are open). The schedule doesn't get updated until like 3-4 weeks before the show (so those out of town probably find it hard to decide whether it's worth coming). I don't see the point in listing exhibitors that haven't been there in over a decade (D & M Pinball - Daniel Frano)? I know him, he hasn't even attended the show in probably almost a decade much less been a vendor. How is this relevant? The classifieds: Keep this up, I sold and bought a game (and some gottlieb legs) this year so it's definitely worth having. Maybe archive the past years to reduce confusion.
I do like the idea someone posted of allowing pins at Terry's to be moved over to Expo. My Freddy is still sitting there, I'd love it if it got played at Expo and I got in free on Saturday. I don't bring a pin to Expo because I don't want to move it on a wednesday night to Wheeling, then go back home, then drive back Saturday, then have to come back again on Sunday. I live 4 miles from pinball life, I bring it 4-6 weeks before expo at my convenience, and pick it back up at my convenience. Yes, I know this isn't possible at Expo or any other pinball show because they are renting that space, but that's why Terry has to turn machines away. Somehow Expo needs to setup an easy pickup system.