idealpoint via Amazon offers the New Trent Airbender Air Bluetooth Clamshell Keyboard Case for iPad Air, model no. NT510K, for $56.95. Coupon code "FINEDEAL" knocks it to $36.95. With free shipping, that's $63 off list and the lowest total price we could find. It features a metal hinge that allows for landscape and portrait orientation. The keyboard itself works via Bluetooth.