Another issue you might run into is "waiting lists". Some of the best storage lots are full-up.
If you could get by with "seasonal" storage, many State/County Fairgrounds rent the barns out for RV/Boat storage in winter.
Price also varies but security, "covered", etc.
Locally the cheapest place's gate is open Mon-Sat from 8 to 8. But open means open, anyone can drive in at any time.
Some friends wanted covered storage, had been "wait-listed" for several years, then found out a mutual friend was the grand-daughter of the owner, they had a covered slot the next month.
2008 F350SD V10 with an 2012 Arctic Fox 29-5E
When someone tells you to buy the same rig they own, listen, they might be right. When they tell you to buy a different rig then they own, really pay attention, they probably know something you don't.