Things to consider when buying Wigs for women There are a variety of factors that determine the price of a wig. Human hair wigs are among the most costly, though some models are constructed from synthetic materials. Natural human hair lace comb hats are also the most expensive. Although they're generally less expensive but require more attention. Hair bobs react differently to humid conditions and the weather and may need to be styled or dyed to look its best. Due to these reasons you need to think about whether the price of a natural human hair bob is worth the additional cost.