Oregon SP looking at Flexible Pricing

It makes sense to charge more for one parks than others. To me, it also makes sense to charge more for popular weekends than less popular midweek stays. And more for peak season than off season. Pricing is a blunt instrument, but it might encourage flexible people to select less popular times/places. Many private parks organize such pricing policies; perhaps your state could manage it, too.

Text of the bill HB 2318

The bill allows for increasing the fees at certain parks and also decreasing it at others to balance attendance.
While a difference in cost likely will not get someone to change from staying at the coast to staying at Cottonwood Canyon. It may get some to stay at less used near coastal park.

Yep, the price will only go up, not down.

If Politics are promoting this then the most popular parks will double in price, every state needs more money. That will push mom and pop to the unpopular parks and their price will go up nothing goes down. JMHO