The Stovepipe Wells Village RV park is a different (and privately owned) RV campground nearly adjacent to the NPS-run Stovepipe Wells Campground. 

Open year-round, this is one of the priciest places to stay in Death Valley charging $40 a night for a parking lot drive in site with hookups. There are very few sites here (14 in total) and they do take reservations.  The property is managed by the hotel across the road and you have to check in for the RV park there. You also have access to the hotel facilities (ie. pool) if you pay the $40.

Stovepipe wells RV park has air and water at the gas station/market (where the RV park is).  Gas here was almost 2$ cheaper than in Furnace Creek (about 25 miles away). There is also a general store minimart with souvenirs here in Stovepipe Wells Village.  Beer, water and soft drinks were surprisingly very cheap considering how far removed you are from civilization. A good hub for a sunrise or sunset hike up the sand dunes or an early start at Mosaic Canyon. Not too far from the Artists Drive.

Other than pool access at the hotel, this site doesn't offer much more than the NPS site next door which is only $14. The only reason we considered staying here was that the NPS site is only open during 'season' beginning in mid-October, so it was the only site actually available when we went.