daniel f aleman:Catherine,
You questions are valid, of course. Over the last thirty years I've noticed that PADI has realised that con-ed is their business model; compartmentalization of information to specific teaching programs is the result. One of the reasons OW water is what it is, is that pushing education after OW retains divers. Feed just enough information, reduce task loading, and get divers into the sport. Continued participation through stepping-stone education is the key, and the books reflect that.
Well I have to agree with you Daniel, but were does diver safety and instructional morality come into playing, or am I a naive little man?
It sounds to me like you're saying that they're feeding them (too) little, and unless they come back to the trough, they're probably not getting enough info to conduct safe diving other than trial by fire, and if so, then the book seller is stating that they should have ponied up for more books and tough banana's for the dead guy for not having the coin to card-up.
???