Best Buy via eBay offers the open-box Pioneer Elite 7.2-Channel 4K 3D Home Theater Receiver, model no. VSX-90, for $404.99 with free shipping. That's $94 under the lowest total price we could find for a new unit elsewhere. It features 165 watts per channel into seven channels, 3D and 4K Ultra HD passthrough, WiFi, Bluetooth, Dolby Atmos, USB, two HDMI inputs, and seven HDMI inputs. A 2-year Pioneer warranty applies.