What type do you have? They have a sweet setup for sure!
Truck camper is a Shasta fully outfitted slide in camper 1800 pounds...bathroom (toilet, shower) oven, solid state thermostat heater, fridge, kitchen sink, queen bed, etc. Bought it for $4500. 5 years ago for yearly extended holidays for destinations in USA. This unit is not a junk heap but a 1995 model well maintained I bought soon as I walked into it and owner said it had never seen a mouse. Saves me in a month instead of hotels minimum of $1500 to $2000 and paid itself off in purchase cost.
Other option is a 1979 Chev van inherited from father outfitted for sleeping, cooking, etc Zero cost but was concerned even with 85000 mileage on it that rust might have destroyed it' s structural integrity. Road certification found no rust by three mechanic inspection. Only needed two new rear tires and a few marker bulbs. Father pressure oiled it twice a year. I use this or 2500 SLT depending on where I go when camping in forestry access road areas north of my location depending on target destination. Some areas are rough and require high clearance and 4WD even in summer. Set up base camp\ with either vehicle and 2020 TE Husqvarna 300i rides on channel carrier off rear hitch. Use it to tearass around the zillions of abandoned logging roads and trails off forestry access roads. Lots of lakes to kayak and camp around and only 90 minutes away. Can access large cities or small villages by trails connected to them at will.
Family farm area is only 30 minutes away and two trailers parked at lake waterfront. One is bare frame built up with wood stove and the other is a purchased model. I can and do use them with access road van can travel.
I am not stingy but have saved a lot of money by purchasing/utilizing/outfitting/building older units self contained and comfortable. On the road when tripping all parts of USA, I stay at Walmart, Target, etc when heading for destination which invariably is the Colorado Rockies. People I have befriended allow me to camp on their estate property just outside Denver for long as I want. Vacations and getaways do not have to cost zillions.