There are rumors, hopefully passed on by yours truly, that La Sirena has been/will be purchased by WalMart, but so far it is just a rumor. As CFA123 points out the La Sirena in POP is the closest thing and is like a mini-WalMart. PriceSmart is a members only shopping club in Santiago and is like a mini-COSTCO.
Is pricemart worth becoming a member of? Are there significant savings when compared to the other major supermarkets in the country, sounds interesting, I didn't know it was similar to a costco, does it have those hotdogs and a soda for 1$ ? I wish lol