As stated multiple times, it is pretty large. Been there multiple times. Think about the parking lot of a hockey arena filled with RV's. The good part is if you are debating floor plan layouts or the overall size needed, 5th wheel vs travel trailer, etc etc. there are plenty to walk through. On the flip side, if you go there with a blank slate you will never get through everything and might confuse yourself more.
Last time we went was 2 years ago when we were debating a new motorhome (small A or C) with bunks vs a new travel trailer. We went there just to walk through the motorhomes with bunks. Ended up staying with a travel trailer due to the extra space and cost of the floor plans we liked. So it was useful in that regard, but we ended up buying directly through the dealer. There really is no "show price". You can negotiate that price any time.