This is an interesting post and growing situation. I have to believe economics plays into the whole matter. Considering lake of the ozarks, my home lake, I am accustomed to paying $5 in and $5 out or $5 dollars to lauch. You can pay $50 dollars to use PB2, but are restricted to using their facilities (which might include Pa he si and PB1)?
Either way, this income appears to be necessary to sustain viability since they are privately owned. However, I will say this, us fisherman are fairly low maintenance, we tend be conservationist by putting trash into its appropriate place, whether that be a trash can at home, lauch ramp or floor board of the pick up until it can be properly disposed and finanly, the last time I checked I didn't always require a toilet to piss in.
I guess what I am trying to say is it may be necessary to charge and for some necessary to pay. But I will always look for the better deal as long as the ramp is in good condition. Sometimes at LOTO the water is slow you don't have many options. Other times it pays to use the free ramp, depends on how many times a year you fish and what your tolerance is for amenities and convenience.
My two cents.