I wish I could find storage for the prices y'all are talking about.
I've been searching all of the places here locally to check on covered storage for our new 5er after we pick it up in a couple of weeks.
The best I could find was for $150/month, and that place has had some break-ins over the past couple of years. Another place was about $185 for their covered storage, but the lot is a huge shell and sand dust bowl, and I'm worried about the sand kicking up during the windy times and sandblasting my rig.
The place we've settled on is $205 after a law enforcement discount and includes electrical, dump and wash stations. It's a secured lot with 24 hour access and security cameras all over the place. Plus, they're so full that I'll be in a fully enclosed garage bay until space opens up outside in the covered area and it's only about 15 mins from my house. I don't like paying this kind of money, but I want our new rig to last 10+ years, and I think that covered storage where my rig is out of the sun and I don't have to worry about mice and other issues is the best way to go. But, it's darn expensive...