For 2007 the minimum is $41/night, plus tax, making it about $46/night.
That's only for a partial hookup site which means water and electric. Only tents and pop ups can book these sites.
Regular trailers, 5th wheels, and motorhomes can only stay at full hookup sites, which are higher at $46/night plus tax (about $51/night)
The above is for value season. For the other seasons, partial hookups/full hookups, tax included, are as follows:
Regular Season: $65, $77
Peak Season: $75, $88
Pre-Holiday Season: $50, $56
Holiday Season: $87, $101
There are also the preferred sites which include cable. These all run $6/night extra above the regular full hookup rates.
Depending on how you value your points, 6 points for full hookups, at $4.25/point maintenance fees, is about $25.50/night.