I kind of agree with those that say the park could lose money. Especially when it's a private campground. I do understand the ops thoughts that they are paying the same amount also. There are some parks that won't guarantee you a specific site. Generally KOA's don't do it. Just by site type. If you call the park directly, you can often get a specific site though. Just not through their online reservations. And there are a couple parks in myrtle beach that do the same thing. No specific site, just areas.