If this link works, this is the version we have. It won't show me the price because we already have it. We bought it in January 2015. It doesn't just have campgrounds. People like it.
It also has dump stations, dealers (even Cruiser), truck stops, low bridges, propane dealers, RV parts places, various retail places, city, county, state and national park, etc. and a decent map. I don't own stock in it but the $ is minuscule compared to buying coffee on the road.
Camp & RV - Tent Camping to RV Parks by Allstays LLC