This is the first I've ever heard of that stereotype...honestly never really gave much thought at all to the people that buy and use them, never-mind stereotyping them.Because the people I see driving them are pretentious, self-absorbed, entitled assholes who can throw around $100k or more on a van to "spend time outdoors." There is a negative stereotype associated with these rigs. No offense intended personally.
Other than that, sure it is practical.