Well, I do not cover mine, just think it is more work. Once the cover is off then it has to be cleaned then stored for the Summer. The camper cleanes up nicely after the Winter and I leave the night shades open so that the sun can help keep it dry on the inside. A camping friend of mine has a Jayco and they cover there unit but they still wash and wax it before they take it out on it's first camping trip....Is there anyone out there that can help me see the light as well, I guess I need the pro's & con's I just don't see the differance.