Some good points in the last few posts.
Just to clarify- at the specific Salida East site which launched this thread- the impetus for change was the State Parks- thorough a local entity called Arkansas Headwaters Recreation Area- AHRA. AHRA saw a heavily used area which is adjacent to a boat ramp they manage- this area is about the only valuable plot along the river they do not control and being well located and no fee gets more heavily used than their other campgrounds- they saw $$. Plain and simple. (They get to be a landlord and rent out campsites with a zero acquisition cost).
When you descend off of Trout Creek Pass and have this awesome view of the entire Arkansas Valley there is a country road that extends off of the main highway to a view point. It has been there over 50 years. People pull off take a picture and go on. AHRA managed to get the BLM to give it to them and they charge the $7 daily fee to anyone who stops there for a picture.
As far as profdat's suggestion- there are BLM places that do something like what he suggests. Quartzsite on the Calif/Arizona border is a mecca for hundreds of RVs who spend he entire winter boondocking there. You pay a very reasonable fee of $40 for two weeks or $180 for the entire winter. There are about 4 different areas spread of miles of desert and there are camp hosts to check for compliance.
A camphost is a logical alternative to rangers. The cost of paying a ranger to check for stickers would be more expensive in labor than the money the stickers would generate.
Besides Quartzsite there are BLM campgrounds all over the west that charge a reasonable fee for camping- something like $!5 or $7,50 for seniors. Many are first come first serve.
As far as I recall neither I nor anyone else on this thread has expressed an objection to those BLM camping fees.
Rob