Welcome Brian. I concur with the "don't worry about it" philosophy. In checking the archives of my internal hard drive, brain, I can't remember ever having anything stolen from a campsite, except by real packrats in the desert. I've seen other campers do a lot of stupid things, but don't remember theft being one of them. If you've got the money, go for it! If it's questionable, as others have suggested, find a good used one. I'm very happy with my 1980 Burro
13', though in a year or two when I have a bigger truck, I'll move to a 16 or 17' before venturing on a year long USA/Canada trip. The resale value holds well on the FGRVs. Good luck and happy camping.