We stayed overnight in a Walmart once. I didn't like the noise, the discomfort of not having slides out, no shore power, etc. I may be spoiled, but we usually stop for the day between 2:00 and 3:00 pm. So, we're in the campground for more than a "few hours". I'm retired, and if I can afford to stay in a campground that is secure, has shore power, sewer, wifi, and maybe even cable, I'm going to do it. To each his own. Those of you who like rest areas, Walmarts, truck stops, etc., more power to you. It's just not for me.