Here is a link
to a BIG storage facility in Lancaster, PA.
We strongly advocate the concept of a seasonal site. Our seasonal site works well. We live in a condo town house community. The association rules allow overnight parking only. The coach being on a lot close by has many advantages. We are hooked up all the time. Most importantly, we have 24 hour access with VERY good security.
We have met many new friends at Camp. Even if we aren't on the road it is still possible to get plenty of use out of our investment. The motorhome gets used at least 3 days a week all 3 seasons. We fly way south in the winter so that is a perfect place to store for the winter.
Our camp is a AANR
certified camp resort. They have indoor and outdoor pools, gym, snack bar and a small hotel. There are activities all the time and they are open all year. The price is about 2x what dry storage would be.