I am very fortunate. At my home I keep maybe 4 bikes in the garage . I also have a shop where I store about a dozen. I don't keep any outside , even in Southern California. I think if you found a good way of covering it and locking it maybe would help. Also, I have a wife who puts up with my vintage bike collection. I do have two Rubbermaid storage sheds on the side of my house and each has a couple of bikes that are waiting for me to restore but they were already a bit rough when I got them. I am semi retired now so I have thought about what I'm going to do when I move my shop home . I try not to think about it.