Thank you for all of your input.
Looks like I won't be enjoying that secluded beach that I was hoping for :)
When I travel in the US, I will spend a number of nights in places that I can stay for free and then reward myself with a stay in someplace nice. I generally don't stay in one place longer than a week or two.
I am happy to support the RV park owners as I am able. What it comes down to is that if I spend less on a daily basis then I can stay longer.
I appreciate any suggestions regarding low cost/safe places to stay.
Thanks again.