Aspects to Take into Account When Buying Wigs for women There are a variety of factors that determine the cost of hair wigs. Human hair wigs are the most expensive, but some models are made from synthetic materials. The natural human hair comb hats are also among the most costly. While they're typically less expensive, they require more maintenance. Hair bobs react differently to humid conditions and weather and might need to be styled or dyed to look its best. Due to these reasons it is important to consider whether the price of a natural human hair bob is worth the additional cost.