The Season 3 Region 1 DVD set looks to have shown up on Amazon. As you might expect, the publisher is Shout! Factory, but the cost is a mere $15 at preorder. Makes sense, considering the number of episodes in Season 3. Nothing much on the page right now though except the release date of February 4, 2014.
[Editor’s Note: Give a warm welcome to one of the newest contributors to DN, Marimo! Um, If that’s all right with you…]