Wasting your money in my opinion.
There is no iGO made especially for campers, that's just how it's advertised by the seller to make it sound appealing to someone wanting to purchase a GPS device that has info on camping locations etc..
That device you've ordered looks to have Primo in Truck mode with camping POI's added, you can most likely do exactly the same with the Primo you have now.
You already have Primo, just add the camping POI's.
Nabi explained to you how to do this over on FixMyGPS.

Nozatec's map updates are questionable to say the least, better off getting your maps from here (or other sources on the web), your device being Nozatec will have cracked software on it so the maps from here will work.
I've found the latest they have available for download is more than 2 years behind for the Australian maps, I'm not sure about elsewhere in the world but it wouldn't surprise me if they were just as far out of date, which is quite possibly why your're finding your maps aren't as good as they should be.