Some people think that if they are paying less , then what they buy is probably fake. This is not always the case! Obviously there is always a minimum price that a legitimate retailer must charge for a pair of real RayBan. For example, if RayBan factory ( Luxottica) charges its retailer about $100 for a pair and its retail value is around $200 , then you can not expect to buy that pair for $99. This make sense , because retailers are in business of making money and not giving away their products. Also, all Luxottica authorized retailer can return the products to the manufacturer , so there is no point of selling them less than their cost as the company would reimburse the cost anyway. Moreover, real authorized retailers are not a guitar scales llowed to deeply discount their products . This means that if the retail price is $200, they may be able to sell them at $180 . They are not ;however, able to sell them for $120.I have seen people selling RayBan on ebay or other channels for less than the retail price and yet they sell the real ones. I have also seen people selling on ebay or elsewhere and they sell the fakes ones while advertising them as authentic pairs. Those sellers who sell real RayBan sunglasses on ebay can get away with it , because luxottica (RayBan Factory) does not know who those retailers are. The problem with buying on ebay is that you may end up with a fake pair. Also, even if you receive a real pair, your Ray Ban’s warranty is not going to be valid.