We purchased a lot in a membership campground and pay annual membership dues on it. The lot is ours and only ours and we leave our fifth wheel on it year round. Our dues run about $700 a year which is probably about what we would pay for storage fees. The campground has a swimming pool, clean bathrooms and water and electricity are included in the dues.
If you like to camp closer to home, this is the way to go. We are 45 minutes away, It is so difficult to get reservations at campgrounds in WA and OR, especially if there is more than just our family camping.