$20? If you really want to invest in Michelle's vision of adding a ropes course and improved campsites, I guess it's a good pay-it-forward thing to do. As a Price resident, I'm for it, but I think getting the road to the top of the hill paved would be first on my priority list. Otherwise, there's literally anywhere else in the desert that you can camp for free.
To my knowledge (Carbon GIS) this area has some privately owned properties around the southern end, and SITLA (School and Institutional Trust Lands Administration) on the north end. Past the cattle grate is Federal land. I'm not sure how this is a campground with a $20 fee. I have seen lots of flagging and new paths plowed, but other than the plethora of impromptu campfire rings (often within 10 feet of each other), I don't see any evidence of a campground here. I have seen people camp with their overland rigs and RVs in the main Wood Hill parking lot.
As far as destinations and accommodations go, I'd put this area in the upper end of roadside attractions. If you are on your way to Moab or San Rafael Swell, this would be a decent place to stop overnight.
As for 50 miles of mountain biking trails... The number seems pretty inflated. On the Wood Hill plateau, there may be 25, and about 30% of those are rarely used and in disrepair (not to mention the complete lack of flow the whole trail system has).
Butch Cassidy trail is to the east, which is a 5 mile loop that is used for high school cross country races. It's the only trail that has good flow in the area. There are a few more "trails" off of Price-Kenilworth Road (Ben's Switchbacks, N Dead Dog, Wild Bunch Wash), but they look like they haven't been ridden since they were built.
On the plateau above the new Peerless Port of Entry, on Hwy 6, there is another set of trails (Mark's Meander, Driver, 3 Wood, 5 Wood, Buddy's, and Out of Bounds), which seem to be getting a bit more attention in the last year, but are still only about 2 steps up from a game trail. At most, there are 10 miles of trails here.