Maybe it's because my parents always insisted that the only colors walls should be are white, beige, and baby blue, I've never been much of a blue kind of gal.
I don't dislike blue, but I used to find myself going out of my way to avoid it when picking colors for my own home decorating.
It took a while, but I eventually realized that I'm just not fond of that particular kind of pastel blue that was in every kitchen and bathroom growing up.