You mention pricing structure. That's an enormous difference. You have received a certain amount of criticism for over-emphasizing text. We sometimes joke here that in the age of multimedia, the text has just become the mayonnaise on the sandwich. That is just plain silly.
Text happens to be the primary medium for the conveying of information and knowledge.
It is not the sole medium but it is the primary medium that we all use every day. And it never ceases to amaze me to hear someone deliver an eloquent paragraph of spoken text to argue that multimedia is somehow more significant than text. They argue with words, they don't show you pictures to make that point. They have to explain it in somewhat elaborate detail, and yet they seem oblivious to the internal contradiction there. What we are trying to do at Britannica is to try to use the various media that have now become available to us in order to achieve the same ends that have always motivated our work.