A Goyard bag is expensive primarily because of two reasons. First of all, the makers bring out limited editions of bags. To put it simply, whenever there is a new collection from Goyard, there will be a certain number of bags in that collection. So, there is always a high demand and limited supply, increasing the price curve. Secondly, the Goyard bags are made of signature Goyardine material, associated with impeccable quality and durability. So, the bucks you will be spending on your Goyardine bag will be completely worth it.