Ours is stored at home.
We leave the larger front slide in because there's not really a need to have it open. The rear slide usually stays open because it has to be open to get in the bedroom drawers and that's probably how it was left when we returned from our last trip. If I take it out for an exercise drive, I may leave it closed, but it'll need to be open to pack for the next trip anyway, so I may open it to avoid a brief cold start and idle to get it open.
I generally leave the rear jacks extended because it gets us close to level in the driveway. Same thinking - it'll have to be leveled up in preparation for the next trip when I start the refrigerator.
I stayed in ours during an out of town work situation for over 3 years. Slides out and jacks down all day every day for those 3 years except for exercise drives and a vacation trip or two. After that I don't worry over the state of the slides and jacks much.