Yup, you've got a real bathroom and when you are offroading your rig is lighter because you left all that stuff at the campground. And when you are commuting you aren't lugging all that stuff around either.Most of that equipment can encroach on what our camper cost and causes the rig to get around the same MPG (I get around 11-13 mpg towing our camper). The difference is that our camper has AC, fridge, two beds, a bathroom, water and sewer hookups, allows for one to stand up and walk around, and the daily-driver functionality of the rig is maintained. We spend ~15-20 nights a year in our camper and would spend more other than the annoyance/distraction of full-time jobs.
When I was a kid my dad and I took lots of trips out west in S-10 trucks and just camped along the way. "Overlanding" before it was a thing.
I'm sure there are some folks who do actually camp in the wilderness out of their rigs. But how many people really need the range for long-distance, off-road touring in the US?
On another forum, a fellow described his experience with a couple wannabe overlanding influencers. They were at a large campsite in Maine where they spend a couple weeks every summer. This is the sort of campsite which is suitable for pickups pulling longer trailers and RVs. One morning, a couple in a spotless Tacoma with a rooftop tent pulled in about 9 AM. The woman filmed as the man was setting up their campsite. They did multiple takes to get it right, partly because the fellow was having trouble figuring out how to raise his rooftop tent.
Then they built a fire. They cooked a breakfast on an off-screen camp stove and then moved the cast iron pan over the fire to pretend they had cooked breakfast over the fire. They filmed themselves "relaxing" at their campsite before packing up their spotless Tacoma and driving away.