This is very true. Before I was married, the only women I would look at had big tits and were a size 10 or up. I wouldn't give a second glance to a petite woman.
Now that I've been married for almost ten years, I seem to notice the size 4-6 women more and more. I've managed to limit it to just "noticing" them, but it's pretty clear that no matter what you have regularly, your hormones start craving something different.