I think maybe campgrounds are the luxury of the T-Val O/O crowd as it just does not work well for us who are waiting for a load to be offered for immediate pickup.
We would not go to an RV park or campground to spend the night while waiting for a load. It makes little sense to put your admission money at risk. If you are in service and available to roll on a moment's notice, you are not on break. You are on the job, ready to roll. We pay to stay at parks only to take a break while being out of service or to stay over a weekend when dispatched on a Monday pickup.
In this case, we paid nothing. The park is free but it closes overnight. We slept at a nearby Wal-Mart and spent the day at the park.
Regarding generators, our Onan is one of the quietest generators on the market but campground rules generally prohibit generators of any kind from being run during certain hours. For that reason, we don't pay to camp where shore power is not available.
With freight slowing as it has, we have been waiting for freight more and been pre-dispatched over a weekend less. That reduces the need and opportunity to stay at an RV park such that we have not stayed at one in 2009. We have, however, enjoyed time at various city, county and one state park where the truck is allowed, admission is not charged and the surroundings are nice.
Another factor is the weather. If we need to run the generator 24/7 to stay comfortable in the truck, an RV park and its shore power becomes more attractive. This time, with the weather being near-perfect and a truck-OK park nearby, we got yesterday's non-truck-stop break for free.
Generators help drivers save a ton of fuel money by eliminating the need to idle the truck, but they still cost money to use. Generators have their own purchase price, life cycle, and maintenance and fuel costs.
While it is less expensive to run the generator for say 48 hours instead of paying to spend two nights at an RV park, keeping the generator turned off for those 48 hours saves money that partially offsets the RV park fee; thereby reducing the cost of an RV park stay and making the park's showers, laundry, safety and pleasant surroundings more attractive.