The stock is doing better than all other Retailers out there.
There is a reason behind this.
For Habitual customers who do this........ COSTCO knows that they can be DeMarketed. There is nothing else for COSTCO to do. Their suppliers know this as well and many times, when a perishable product is returned they toss it out anyways because its not ReSALEABLE.
The reason why COSTCO does so well is because they Take care of their Customers. Other retailers DON'T Care about their customers like COSTCO does, thats why they are losing business to COSTCO.