And the price for a preferred campsite seems to go from $93 rack rate to $74.40 with the "Enchanted Escape" discount offer.
I don't know if this means that, were you to want to stay for longer than a 5 night stay Sun-Thu, you might have to break it down to 2 or more reservations, so any stays in a Sun-Thu timeframe get the discount but the Fri-Sat portion of a stay is separate.