WWC Worldwide via eBay offers the open-box OtterBox Defender Series Case for Kindle Fire HDX 8.9" Tablet, model no. 77-25221, for $18.95 with free shipping. That's $14 under last month's mention and the lowest total price we could find now by $1. (Most merchants charge $40 or more.) It features three layers of protection and allows for both landscape and portrait orientations.