At What Price, Vocab?
from Madeleine L'Engle

We think because we have words, not the other way around. The more words we have, the better able we are to think conceptually. Yet another reason why [A Wrinkle in Time] was so often rejected is that there are many words in it which would never be found on a controlled vocabulary list for the age-group of the ten-to-fourteen-year-old. Tesseract, for instance. It's a real word, and one essential for the story.

Would any of you adopt this strategy if you had multiple publishing houses pleading with you to make your writing "communicate better to a wider audience?" The latter half of that sentence doesn't apply to me at this point in my career, but this is something I'm turning over. The question should also be viewed with the help of G.K. Chesterton's counter-perspective:
Long words go rattling by us like long railway trains. We know they are carrying thousands who are too tired or too indolent to walk and think for themselves. It is a good exercise to try for once in a way to express any opinion one holds in words of one syllable… The long words are not the hard words, it is the short words that are hard. There is much more metaphysical subtlety in the word “damn” than in the word “degeneration.
So then, put yourself in the shoes of an aspiring author. Then ask, Is "tesseract" worth it? I await your opinions.
Cross-posted on BitterSweetLife.