People that are not all that well versed in the world of modeling and also tend to have a relatively closed minded view of the world around them are often of the opinion that modeling is a rather vapid profession that is purely about looks and nothing else at all. There is a pretty good chance that these opinions come from their own lack of understanding and backwards worldview since modeling is the type of job that requires the people working within it to do a lot more than just look beautiful enough that everyone would want to look at them.
The truth of the situation is that trade show models in Las Vegas actually have to work really hard. This is because of the fact that their job is not just about their physical appearance, but rather they also need to focus a fair bit on their sales skills to a degree. The fact of the matter is that when you are a trade show model, looking good is only useful to the extent that it might result in people walking to your booth, after which you need to use your amazing selling techniques to describe what the product that you are hired to represent is actually about.
Hence, a trade show model is also similar to a temporary brand ambassador that will only help you out during the trade show itself. They can be great for businesses that want to try to get the word out regarding the new and amazing things that they are trying to introduce to the market, and this can also be a really tiring event that models need to be paid fairly for.