When we bought our latest TT two years ago, it was not because of something we saw at an RV show. It was mostly based on our years of experience, knowing our needs (things we didn't get in previous TT), looking at floorplans, knowing weight/length limits of our TV, and then exploring various models at a dealership.
When we go to an RV show it is strictly for entertainment purposes and gathering some potential ideas for future mods. We won't be in the market for another TT for many years, if ever.