Having dealt with Wal Mart, Costco, etc, forever with huge companies, I would say it's likely the product itself won't change, hard with beverages and expensive. The serving size and packaging is easily adjusted. But, Wal Mart specifically makes it very difficult to squeeze out a profit, but, placement, shelf space is expensive, is good advertising and can create cash flow, lower production costs, if it sells, doesn't expire, and so on...