I know I am off here, but to me it is Safety.
I am a very safety oriented person, when it comes to money, though I am no stranger to risk. But if the roof over your head is truly yours, and no one can take it away, you are safe. The rest is icing on the cake. So that means I can accept risk on everything else, but not with the house.
Safety means I control what happens to me tomorrow. And what I do tomorrow. Maybe it is freedom that is the goal, but that comes from safety, I don't know.