I have kept my 5er in covered storage lot since new. My trailer looks like new even the graphics. No sun damage to the interior the caulking on the roof or the tires. The place is secure with keypad access. Have been there 25 years and nothing stolen. I keep my Diesel truck and Excursion there as well. The place is less then 2 miles from my house with easy access.
While my driveway has room for a large RV you had to back between two telephone poles from a narrow street, not fun. I don't have to worry about someone seeing the RV gone and know I'm not home. I will always keep my RV in covered storage and to do so at home would require building a large RV-port which I don't have the room. Loading is not a issue, park on the street load and go.
For me it's about convenience and the storage lot is more convenient for me. I understand for some it is a lot more convenient at home and it works better for them.
Things to consider for storage, price, security, distance from home and easy access to park the RV. Hope you find what works best for you.