I have been to one.. Liked it and will go again when funds permit
A consideration.. Berrian Springs is only around 40-50 miles (Depending on where in each town you are parking) from Elkhart, IN
Many RV's were made in or near Elkhart
So if you need to visit the factory... Or any of the other businesses such as RV-Salvage.. You can make the GLASS rally and then had for Elkhart.
I did