Who cares if they are too lazy to read? This is a modern era where video is available easily. Do you think if we have video back when all these books were written, someone wouldn't have been made DVD's also? What is with you god purists that think just because something is in a video it must be for "lazy people" or something? It's not for lazy people, it's for a clearer conveyance of what is being taught. Sometime it is incredibly difficult to work out finger positions and such from a book, not so much these days because they include photographs, but if you can have photographs, what's wrong with video? If people want to spend money on a DVD let them, if they want to buy a book they will, they can make up their own damn minds how they prefer to learn magic.
I personally find video insightful, you can see exactly how it's supposed to be performed, watch it over and over to pick up little details etc, while you can do this with a book you spend half your time working out if your hands are orientated correctly than actually doing any magic. How you can call anyone lazy for not going through that I don't know. You may as well call anyone lazy that uses a televsion remote rather than getting up and pressing the button. Or typing lol instead of laugh out loud. Or eating out rather than cooking dinner at home. Or uses a mobile phone instead of going to visit the person. Or driving somewhere rather than walking, or crawling, or rolling.