I have to confess, there've been a few times I've been tempted to get the Cross Cult versions of some of the Trek books just because the artwork is so good, but I don't read German, and I just can't bring myself to spend money on something I know I won't use.
If I'm not mistaken @Therin of Andor gets himself the German novels, at least some of them. I don't think that he reads them in German, though.