It cost me over $300,000 and 4 years of my life to store my camper "free" on my own property. I moved (and went through H*ll selling my old house) when the zoning board notified me I could not park my camper at my own house on my own property any more ... after 16 years of RV ownership!
We moved, and my camper now sits in my driveway for free and we do a lot of driveway camps now too! I sleep where my camper is parked. If I had to store my camper in a storage facility, I'd probably become a manager there so I could sleep with my camper.