An RV show is the last place I'd buy one unless I knew exactly what the going price should be on a specific unit. As an example of what you'll see at an RV show is what happened to the wife and I a couple years ago. We were inside a TT and while I was opening drawers in the kitchen I found a flyer in one that had a sale price lower than the RV show sale price. They had the MSRP jacked up so it looked like the higher sale price was a good price.
When I go shopping for an RV I want to spend time thoroughly looking it over. I can't do that with other people in it. It seems like most trailers are full and you have to wait for someone else to leave so you can go in. Hard to discuss things with 3-4 other people wandering thru while you are checking it out.
JMO but RV shows are only good for looking at multiple brands all in one spot as opposed to driving all over town.