Some years ago we were camped at Lake Louise State campground in FL. We and our friends next door had surge protectors, his protected his rig with no damage to the protector, our protector was fried while protecting our rig. Across the street, the camp host , who did not have protection on his pusher lost ALL his electronics. We even have one left over from our last pusher on lil rig. In 2007 we spent 3 months in Canada and Alaska. At Whistler the power was so high our autoformer would shut down, the campers around us were all using their generators as we did after the hi power warnings were issued. We also were saved from an open ground at 1 time so if you are more than a weekend warrior at some time you may run into a problem.
