Amazon Warehouse Deals offers the used Amazon Kindle Fire 9" HDX 32GB WiFi + 4G LTE Tablet for $199.99 with free shipping. That's $230 under the lowest total price we could find for a new one. Features include a 8.9" 2560x1600 touchscreen display, front-facing 720p HD camera, rear-facing camera, USB port, 2.5-GHz quad-core processor, and Fire OS 4 (Sangria).
Note: It's currently on backorder, but will be in stock on October 7. Also, it does not come with a warranty.