First time travel trailer owner here guys so take it easy on me. I am sure I will have a lot of questions being a new owner. We took the plunge and signed papers on our 2016 Sundance 291 XLT QB on Saturday. We are starting our list of things to buy for the trailer and it keeps growing it seems. I have done some research and talked to a few friends and everyone recommends a surge protector. It seems the prices are all over the place, from $100 on Ebay to almost $600 in some other stores. Which surge protector should I buy and why? Trailer is 50 amp. Any and all info would be greatly appreciated.