Should i purchase and cover my new travel trailer its a 07 jayco eagle 314 bhds i am located in western NY?

Most travel trailers have silicone used around expansion area's or to better state the area in which seams are sealed. Now with this in mind continuous direct sunlight will heat the silicone and cause pre-mature deterioration. I have had several campers and took them back using the warranty but it is so time consuming. I live in Tn where we camp a quite often, so my camper is stored under roof and is 5 years old and has no leaks nor fading looks new. Have great fun camping.Should i purchase and cover my new travel trailer its a 07 jayco eagle 314 bhds i am located in western NY?
Here are two things that I found out when I covered my 5th wheel and fold down campers back in Iowa.

The good thing is that it does keep out that wind blown snow, dirt and rain, but the two things that I fould bad was that with some wind , it causes the cover to move around a little causing rub marks or even rubbing off the paint/finish.

Another was that it does cause a slight and I do say slight musty smell in the camper unless you buy a real good cover that has a vent in it somewhere.

The best thing to do is rent a spot in a building and put in a little mouse poison in and around the camper.