The AAC facilities at Hueco Rock Ranch, and the new campground at the Red River Gorge have a fairly reasonable per night, per person fee structure. HRR- AAC members-$7, Access Fund members-$8. non-members-$10.
The new New River Gorge Campground- AAC=$5, AF=$6 and non-members= $7.

Possibly the new AAC/MP/DEC/PIPC campground may not be more expensive. However, it seems likely everyone will want a piece of the pie. Would be nice if I am way wrong and the new campground continues the tradition of inexpensive camping accommodations.