you're looking at this from a very narrow perspective in terms of use case... one of my favorite climbing areas near me(shelf road) became a reservation through rec.gov only campground. I used to show up on Saturday morning, pay $7 for one night to camp, and leave Sunday afternoon after my 2nd day of climbing.

as of 2 years ago rec.gov took over and kept the same $7/night rate but added an $8 service fee.

it's complete bullshit for those of us who regularly use government recreational services.