A woman’s body (and a man’s too, for that matter) are erva. But when they are clothed, they are not. Should both men and women not wear attractive clothing, nice suits, pretty dresses? The store sin Boro Park are extremely pricey. I can’t afford to shop there (and it doesn’t bother me, as I am not label-conscious). But maybe it should be assur to wear nice clothing, too, because it covers the reva of the body, just as the pretty shaitel covers the erva of a married woman’s (and ONLY a married woman’s) hair.
If the purpose of the hair covering is to make her look less attractive to all men but her own husband, then all the people arguing about the fancy sheitlach would be correct. But if the purpose of covering the hair, is the same as the purpose of wearing a dress or a suit, which is to cover up the erva of the body, then it should not matter to anyone what the sheitel looks like. It’s sole purpose is to provide a cover for something which may only be seen by her own husband (or other women). We amke many assumptions about hair covering, but what if the only reason is because when a woman gets married the status of her hair changes? Period.