That is certainly one way. If Amazon is getting product from multiple suppliers, they can easily taint their inventory with a single bad vendor. Then there is always the human element. Amazon has a reputation as a somewhat &#x27;crummy&#x27; employer. Warehouse workers, when pressed to meet order&#x2F;put-away quotas, tend to put inventory in pick locations based on the product type, NOT where the warehouse management system directs them to. (This of course causes all kinds of stock level issues not to mention accounting issues for those third-party suppliers that Amazon is acting as a sell-through for) 
I do not believe that Amazon is intentionally buying knock-off products with the intent to scam customers but just based on their physical size &amp; the variety of products that pass through their facilities, it is going to happen.<p>Back in the late 90&#x27;s, early 2000&#x27;s before Amazon was as big as they are now, I worked in the commercial music distribution arm of Sony&#x2F;BMG. We were the ONLY people that were manufacturing (In our own facilities) CD&#x27;s for bands on our music labels and yet bootleg copies of CD&#x27;s were going out Amazon&#x27;s doors to customers. How? Amazon doesn&#x27;t keep an abundance of stock on hand. If they run to low, they would buy product for One Stops (at a higher price than we sold to them) because the One Stops could get several thousand CD&#x27;s in a few hours while an order from our warehouse might take 36 hours to get there. It was a stop gap for them to not go Out Of Stock. Those One Stops should only have been getting their product directly from us also, but no one watched their inventory as closely, and they would at times buy product from unofficial manufacturers. Those One Stops were trying to scam people. (Mostly Mom and Pop CD retailers)<p>Again, I have not had any problem returning product to Amazon.