I think I qualify as a makeup snob, because I buy *only* MAC, Stila and Urban Decay.
A significant contributing factor is that soo many of the drugstore brands (Maybelline, L'Oreal, Max Factor) are made by companies that test on animals.
And I just plain like my MAC, Stila and Urban Decay products; they perform so beautifully!
When I was younger, I did buy drugstore products, and never had NEAR as much fun with them as I do now with my higher end goodies!