Its a wholesale club. Replacing an item at full price would be the complete opposite purpose of the store and membership. Its not about the available supply of a product, its about Costco using its purchasing power to buy the product at a cheaper rate in bulk. If the supplier changes the price that item it has to be re-evaluated.[1][2]
"If Costco feels the wholesale price of any individual product is too high, they will refuse to stock the product. For example, in November 2009, Costco announced that it would stop selling Coca-Cola products because the soft-drink maker refused to lower its wholesale prices.[96] Costco resumed selling Coca-Cola products the following month.[1]"
"If Costco feels the wholesale price of any individual product is too high, they will refuse to stock the product. For example, in November 2009, Costco announced that it would stop selling Coca-Cola products because the soft-drink maker refused to lower its wholesale prices.[96] Costco resumed selling Coca-Cola products the following month.[1]"
Info on Kirkland Signature[3] information.
[1] https://en.wikipedia.org/wiki/Costco#Kirkland_Signature
[2] https://web.archive.org/web/20091216131039/http://www.ajc.co...
[3] https://www.cnn.com/2022/02/05/business/costco-kirkland-sign...