lowering your car is about the looks + you get stability on the road and in the corners. moreover, it makes you drive slower to avoid potholes, that increses safety and decreses fuel consumption.
anyways, if you don't like lowered cars, you will always find arguments not to like them, but please, don't be stupid enough to say those arguments without trying to drive atleast few of such cars.
aaaand yes, it's almost the same as high heels for ladies.