When I started wearing makeup at like 21, I wore a lot of Clinique because they're not super expensive and for a poor college student, the GWPs are nice. Since then, I've branched out, but still stick with Clinique for my toner, eye m/u remover, lipstick, and mascara. I actually used to wonder why people were so MAC exclusive. Since I've tried their eyeshadows/shadesticks/paints and MSFs, I understand why--I love their different finishes. However, I haven't felt the need to make my collection just MAC--I have other brands (Clinique, Smashbox, Hard Candy, BE, Benefit) that I like better for the rest of my face.