I'd agree with that, it's just that the bookstores complain about rapidly declining business, and honestly most bookstores aren't bookstores anymore, they are arts and crafts stores with a few books. It's just that if they want to sell a larger number of books, then they need to have a larger selection, which would require them to invest in translations.

It's true that translations are costly, so instead they opt to push books they know will sell well, but the supermarkets sell those exact same books. It's just that without a large selection there's no reason to specifically go to a bookstore and so they die out.