I'll post again what I've mentioned a few times in these forums: RV park owners could get more of my money on our RV trips if they offered dry camping spots available for one night only - with no use of their facilities allowed other than dumping of trash.
I'd rather pay $10 for a single-night-only dry camping spot in an RV park instead of free Walmart parking lots, free Cabellas parking lots, free Cracker Barrel parking lots, free Port of Entry parking lots, free church parking lots, etc.. RV parks are generally more secure, prettier, and quieter than parking lots.
As a result, RV parks get none of my money many times when they could get $10 of my money many times for one night stop-overs. It's no different than retail stores having a full time bargain bin for selected items on sale. RV parks need to do the same.