When you shop for a vitamin, are you more likely to buy the economy size and pay a little more money upfront to save in the long run or would you rather buy the smaller size, pay less upfront and not worry about the savings?
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I always buy the larger, economy size for the savings
I only buy the larger, economy size if I have enough money
I only buy the economy size if I've used the product before
I always buy the smallest size because of the lower initial cost