Surge protector

So far all the responses are from folks who recommend using such. In 30 years of RVing around the country I never needed one. Ran into a few pedestals that were worn or had no ground but never a major issue that put my trailer or contents at risk. A surge protector will not survive a direct lightning strike as it just isn't stout enough to handle all the Joules in a lightning bolt. Check with an independent electrician for perhaps a different opinion from those who sell power protection. Do you have such for your whole house? Have you needed it?