I'm guessing that most households who are likely to go for one are also multi-car households, and you probably aren't going to normally be taking _all_ of your

I'm guessing that most households who are likely to go for one are also multi-car households, and you probably aren't going to normally be taking _all_ of your cars on a long-ish trip at the same time. I'm guessing most of any potential loss in attractiveness represents anxiety more than it represents a genuine loss in utility.