A customer asked the price of the God Delusion. £20 I say. Oh, they say, it's only £16 at Borders. Hmm, I say.
However! The US hardback has a cover price of $27. I can order it from our stateside supplier and with the good discount we get and a favourible exchange rate I can offer the US edition to the customer for £16 and still make the same amount of money if I'd sold the full price UK edition.
Result! But am I not the only one who sees the lunacy of this situation?