does this mean we can get cheap containers?
so you can check if the increase is caused by debasement by looking at the inflation; if the increase in sales dollars is higher than inflation, it means that the debasement isn't an explanation of the increase in sales figures.
cheaper goods re-base the currency. Cheaper goods is deflationary. There is no such situation where raw dollars buy more today and are worth less than they were yesterday; that would be an oxymoron. Of course dollars aren't a great metric for wealth, because they float around like any other fiat currency. But if your Big Mac Index buys you an extra Big Mac, whether because supply increased or demand decreased or shipping just got 90% cheaper, that's the opposite of inflation.