It's not that simple. Yes, dairy fats lend themselves to satiety but that doesn't mean all fats do. There's lots of unhealthy fats and even some healthy ones that don't lend themselves to higher satiety: take a look at the Holtz Satiety studies: http://www.mendosa.com/satiety.htm

They clearly show Croissants, cakes, Doughnuts and even Peanuts have very low satiety. Sure, eggs, cheese and beef do okay, but they're still beaten by apples, oranges, oatmeal and potatoes.

And, let's not loose sight of the fact that health is important too, and there's lots of fats out there that don't do your health good.