Multiple delays and a NZ$60 entry cost have done little to quench enthusiasm for New Zealand’s first Costco set to open in West Auckland, Newshub reports. But shopping in bulk might not fit with our current shopping culture, requiring behaviour changes for shoppers. Research shows that club store prices can be 22.5% lower than traditional supermarkets. Already, Costco’s store-adjacent petrol station in Auckland, which opened in April, has had a significant impact on fuel prices in the neighbouring community.