One way Microsoft can stimulate Xbox One sales is to drop the price to match its better-selling rival, the PlayStation 4. After it confirmed exactly that by announcing a Kinectless Xbox One last month, the company has now opened sales -- hours before E3 2014 kicks off. You can pick one up for $399.99/£349.99 via Microsoft's online store, which lets you concentrate on gaming instead of repeating that frustrating "Xbox on" command. If you decide later that you do want the sensor-packed accessory, a standalone version will be available this fall. Microsoft will also continue to sell the "premium" bundle with Kinect.