The newsletter was selling something that works with Carrara and Zbrush, so as a Carrara user... you made the list.

Actually, the newsletter mentioned a special deal to purchase Carrara 8 Pro, which I already have.

You're probably right that the impetus was to advertise the GoZ plugin. Unlike Modo or Maya, Daz is selling GoZ (the Zbrush link)  instead of  providing it for free to make their software more useful.

Download my free stuff here: http://www.renderosity.com/homepage.php?page=2&userid=323368