Well, the way it would work is that you should get a _discount_ on future orders if you return the bin. But that would require Amazon to raise the initial rate,

Well, the way it would work is that you should get a _discount_ on future orders if you return the bin. But that would require Amazon to raise the initial rate, which they don't want to do. This is why so many states still have laws on the books requiring and setting rates for deposits for glass bottles.