they more than likely sold out on the 29th for the drop, since there was 48 pairs per style. the more popular limited stuff on davidz sells out mad quick. you'll now have to try your luck from a reseller.
from the blog:
"Priced at $140USD and limited to 48 pairs per style, the DT lug sole comes in a premium crazy horse brown leather with a removable kilt and leather laces, and the DT High is comprised of oily chestnut suede with a removable kilt/tassels. You can purchase these boots tomorrow Friday October 29th at 10am EST at the David Z flagship store as well as online at Davidz.com