[Panurge]

[Do you think an author ever thinks about the typesetting when he/she is typing a book? Never place form over content, or you'll fall for the shell!]

Actually, some do. There have been authors, such as Laurence Sterne (The Life and Opinions of Tristram Shandy) and Lewis Carroll (Alice's Adventures in Wonderland and Through the Looking-Glass and What Alice Found There) in whose work not only the fonts but the layout of the book was very carefully controlled by the author. In fact, one problem with most modern reprints of the Alice books is that they fail to respect the relationship among typefont, illustrations, and pagination that Carroll so meticulously worked out. (He was so demanding that his illustrator for the two Alices, Tenniel, refused to collaborate on any of his subsequent books.) There is a very nicely done PDF facsimile of Wonderland done by a typographer/designer a few years ago that uses a typefont as close to the original as possible and with the disposition of the text on the page matching that of the original layouts.
Having pointed this out, I agree that most authors pay very little attention to the ultimate questions of detail in the final design of their books. Some, however, like my late friend Marshall McLuhan, certainly did.
What we really need is a format that can both "freeze" a design, where appropriate, and flow text when that is called for. Text flow is helpful for people with impaired vision, for example, regardless of the size of the screen.