Can one purchase prime US beef in any of the Costco stores in Seoul & environs? It's been a while since I shopped in a Korean Costco, but the last time I was pretty impressed with what could be found. You know how Costco can be; very often there are touches of local "flavor;" for example, a Costco down near Escondido (CA) has a good amount of Stone beer on sale (Stone HQ is in Escondido); similarly, Costco Chico has a lot of SNBC (SNBC is headquartered in Chico, CA); of the three Costco stores I shop in regularly, one has prime meat and a great cheese selection, so on and so forth.