Amazing! The first six on the list are in cities I have family in or near or we lived there. I could make them all.
The Pittsburgh one is the one you ought to go to just to visit their new convention center.
I go just about every year to the Minneapolis show just to check out Airstreams and walk through the monster motorhomes that cost 20 times what I paid for my first land home. Now that I have a vintage Airstream to mess with and fix up I'm not sure how I am going to react to the upcoming show.