Originally posted by caliscouser Fulfilled by Amazon means the vendor purchases the stock (provenance unknown), ships it to the Amazon warehouse for distribution. Where does it go when it gets to the warehouse? the same shelf as Amazon's own stock.
At this point the stock is co-mingled. When a buyer purchases from either amazon directly or a vendor that says (fulfilled by Amazon) it gets pulled off the same shelf (the co-mingled inventory).
I don't know if Amazon has now fixed this but this has been a known issue with Amazon historically.
What you described does not seem to be the case now. If you click on "Used & new (19) from $9.99 " which is just below the first item description, near the top of the listing, and then look at the column under "seller description" there are three categories of sellers listed, Amazon, Fulfillment By Amazon with the name of the actual vendor, and then other vendors listed by name. Thus, it is not now difficult if the actual seller is Amazon or some one else, either as Fulfillment or not. The cards under discussion here are listed in all three categories, the cheapest being sold by Amazon. I always use sold by Amazon if it is available.
Amazon's description of Fulfillment lists the following advantages:
"Stored, Packed & Shipped by Amazon!
Eligible for Free Shipping
Amazon Customer Service 24 x 7
Track your delivery to your door"