Zu is in Ogden, Utah, about 30 miles north of SLC. Since they sell factory direct, they are constantly in touch with their customers and would be aware of people who are interested in moving up within the Zu lineup. Therefore, you could reasonably expect them to be able to refer you to individuals who need to sell their Druids before they move on to Essence or Presence.
Likewise, if you inquire of Sean Casey, it is possible there may be factory blems or leftovers or show samples or whatever laying around waiting for someone like you to inquire. A factory invite is likely as well. They are a fun, friendly bunch. It wouldn't hurt any if you were into motorcycles too.