Altar Missals update

Following on from our earlier post about the publisher of the new Altar Missals effectively creating for themselves a monopoly on supply (in that they are giving bookshops only a "non-negotiable" 10% discount - their stated policy), the website of The Book Depository are offering these books to their customers at 25% discount.

As everyone will appreciate, an online retailer does not have the same level of overheads as a high street retailer. Therefore, if the Catholic Truth Society can supply an on-line retailer at a price that enables them to pass on such a huge discount to their customers, why are they not willing to support Christian bookhops in the same way?