I would think municipal (the kind you find in a town) campsites - the kind you find in a town would be closer to a Michelin starred-restaurant - also usually in a town, then on average when just looking at total area.

Anyways, it's fun to look up things on the Internet I guess, but maybe go and camp in France, and go have some dinner out every once in a while - a little meatspace joie de vivre certainly won't hurt. Usually.