Aspects to Take into Account When Buying Wigs for women Many factors influence the cost of a wig. Human hair wigs are the most costly, though some models are constructed from synthetic materials. Human hair is naturally laced combs are also among the most costly. While they're often more affordable however, they need more care. It's possible that they'll be affected by humidity as well as the weather and may need to be restyled or re-dyed for the best appearance. Given these issues it is important to consider whether the cost of a natural human hair bob is worth the added cost.