I saw one RV park last year in Tucson called the "Prince of Tucson" if I remember right, that was tighter than that. They have a section with decent spacing, but down from us it was a whole lot tighter. And you ask how tight was it? We'd watch people drive down there, then about 30 minutes later they'd come back and leave the RV park. I walked down to take a look. It was so tight that most people (who stayed) could only put slides out on one side. I would have left too if that's where they had tried to assign me.
Bill