We have seen several RV's dry camping in Walmart parking lots. Now I am not a dry camper. I don't think camping is sitting in a parking lot with traffic all round me. To dry camp you need a generator which we have but in case of emergency only. We see most Walmart campers like this one. The $300,000 variety. They also have solar panels which probably cost $5,000. Campgrounds only cost about $20. To each his own..