Who on earth would pay $60+ for a non-specialty/reference/academic e-book? Even regularly, the three individual books only add up to $42 CAD, and one of them was
already freebied.
I might perhaps be persuaded to part with the cost of one of FT Press' business shorts ($3.99) for one of their pop science books, but their "collections" are seriously and disproportionately overpriced.