Of course I know that questioning my own opinion is always healthy. So, if you have some reliable sources telling that the majority of the visitors of Las Vegas-style casinos are very rich people, or "crème de la crème", as you put it, I'd love to see them
What do they say, seeing is believing?
Have you been to Vegas? I've never been to Vegas myself, but I've heard stories from people that were there couple of years ago. It's from them I learned about the common misconception regarding the average crowd in Las Vegas. Going there they were expecting to see what they saw in the movies, the elite, the crème de la crème. But in reality they were constantly encountering people who were looking more like rednecks and such
And you know what that means?
That Las Vegas is extremely overhyped, while its appeal and public perception blown completely out of proportion! Okay, with Las Vegas done and out of the picture, what can you say about the Monaco casinos (of the Monte Carlo fame)? Here we should definitely meet the crème de la crème of the gambling world and financial elites as it literally refers to the French origin of the term (with French being the official language there). In short, do Texan rednecks and their European peers frequent those casinos too? Can't believe that!
Also, I've found an article on Quora with street photos and one pic inside a casino, from which you can get an impression on how the average visitors look in Las Vegas. Here's a quote from the article:
Your impression of Las Vegas must come from TV & the movies only. If you’d ever been to Las Vegas, you’d know that most of the tourists there are not rich
Maybe, all these crowds of tourists are only eyeing the rich dudes there (with their eyes wide shut, of course)