Well it depends on how you have aquired them. If you have aquired them through a liquidator. Or company that is selling them for a retailer that could not sell them. Then you are ok.
If you are buying them from a called manufacturer. Then you will have to have authorization from the label to aquire the product for resale. And you must follow a resale agreement with the lable.
For $80 bucks I wouldnt be surprised if they are fake.