Also, camping without power is not limited to boondocking
. I never, ever, boondock. But I dry camp all the time, probably 90% of the time. Where do I dry camp? Almost all of my favorite national park campgrounds do not have power hookups. In addition, many of my favorite state park campgrounds do not have hookups either. Add to that my quick overnight stops at Walmarts, Cracker Barrel, truck stops, or whatever.
I avoid most commercial campgrounds. I find the sites to be very close together, there are no other amenities (parks give you hiking, site seeing and more), and are expensive. There are a few exceptions. KOAs seem to all be located between the interstate and a freight train track. Noisy!
Yellowstone has just one campground with hookups, and its a glorified parking lot. Meanwhile, they have about a dozen other campgrounds, large, spacious sites, no hookups.
Dorm fridge? Never going to work for me. Sure, they are the cheapest option. But low cost + doesn't work where I camp = waste of money. Dorm fridge in my workshop at home? Perfect!!