The mainly two methods for people use curtains

Some people buy the Curtains just for the keep out the sunshine or light. But other wants the Window Coverings to beatify their house or room. That will add a beautiful scene for the house.

For those only want the normal curtains, they would not like to spend more money on them. So there usually not have valance of the curtain. However, those people to make their room beautiful and elegant, there always have beautiful valances. And also on the choice of Window Treatments is quite picky. No matter what, you can get on line.