I'm all in favor of campgrounds, however........
When we are travelling from point A to point B and it is more than a single day drive I don't want a "campground" or RV park. I want a safe secure site and if it has hookups that makes it even better.
But I want it within a stone's throw of the highway. I don't want to travel 5 miles west then go 2 more miles south or whatever the long directions are. I want to get off at the exit and travel a few hundred feet and turn into the spot I will be staying in.
When I get there I just want to give the person at the desk some cash and go to where I will park for the night. I don't want to fill out forms that ask my life history, I don't want to unhook, I don't want to hear about the laundry, the combination to the toilets, or review the park rules. I just want to pull into a space and get out of the driver seat.
When we do have to stop overnight before getting to our destination that is why we pick a rest area (end spot) or truck stop (protected end spot). Our first choice is the big rig book, but if the choices involve a lot of driving off the interstate to get there the second choice is a rest area. If I am going to take on fuel, and the truck stop has cheap fuel and it makes sense to overnight there we will do that if I can get a spot where I will not get blocked in or hit by a truck backing in. Sometimes a Cracker Barrel works well for us.
I see a real need for transient overnight secure parking. Best Western was doing that and may still be doing it. They had an adjacent parking area to the hotel and if you went in and gave the clerk $5 you could stay the night. It was on private property, it was well lighted, it was watched all night long, and the lot was shared by truckers who also wanted a little security or who had rented a room. Campgrounds in close proximity to the interstate could offer that also. No hookups, but safe overnight parking.