> (I won't say classes because I doubt whether too
> many of these people know there even is a LaTeX 2e).
This is also clearly true of much that comes my way.
> Which is indeed sad, since one can do so much more with (La)TeX.
Some of us do!
> The fact that the authors do the typesetting limits the design seriously
> (while saving the publisher a pile of money).
Mmm, most publishers do not want to pay for any design input for such
books anyway. So it would not make much difference who does the