I agree that a good surge protector is a great idea. I have a 30 amp Surge Guard that is the portable type but is wired into the Minnie. The big advantage is that it is out of the weather, always in place so you don't have to plug it in each time you change camp sites, and far less prone to theft. Should it fail it is a simple matter of unplugging two connectors and reconnecting straight.
Ken and Joyce
2017 RAM 1500 Lone Star Quad Cab 5.7 Hemi, 8 speed, 3.21, Tekonsha P3
2014 Winnebago Minnie Winnie 2101DS