Yes. On a typical day there's a new 50% discount on ebook and ebook+print, of up to 3 different but related titles. On Christmas, there was 50% on all purchases

Yes. On a typical day there's a new 50% discount on ebook and ebook+print, of up to 3 different but related titles. On Christmas, there was 50% on all purchases. Then a couple days later was $15 off on all. As with many commodities, you can simply pass until the price is sufficiently low. Unless you really want the thing immediately.