American supermarket giant Costco says it has its eye on opening stores in Australia, a move that would change the face of shopping there. Costco is a wholesale, no frills chain selling discounted products from massive airport hangar-like buildings.American supermarket giant Costco says it has its eye on opening stores in Australia, a move that would change the face of shopping there. Costco is a wholesale, no frills chain selling discounted products from massive airport hangar-like buildings.American supermarket giant Costco says it has its eye on opening stores in Australia, a move that would change the face of shopping there. Costco is a wholesale, no frills chain selling discounted products from massive airport hangar-like buildings.