I went to many shows in 2004 when I came back to the U.S. retired and was shopping. I also visited four quite different RV factories so I had a good understanding of who was building what how, and would have realistic expectations about what I was buying.
The experience was the biggest help in figuring out what just we wanted for what we wanted to do with it. This was good for our confidence as we belonged to two RV clubs and were seeing a few "three RVs in five years" experiences as people tried to sort out what fit their needs. We continued going to shows, visiting dealers and factories, possibly considering lifestyle changes (like full-timing or snowbirding) but my wife always came out "I don't see anything I like better than what we have."
Now alone, with changing RV needs, I still go a local show every year or two to see what is happening with the RV market, though what I think I want next is probably sold factory direct, so also visiting those factories.
I think shows are a great way to learn about RVs (but maybe get overwhelmed) but a risky place to buy (because you are maybe overwhelmed) unless you come in knowing exactly what you want and are just looking for a good deal.
Nobody has ever given me free food at a RV show, they are always selling food from the refreshment stands licensed by the venue. Guess I am not going to the right shows.
Tom Test
Itasca Spirit 29B