Panasonic 12-35mm f2.8 (M43) with 4% rewards for $698

For a limited time, in the Land of Micro Four Thirds, where fractional math is always over 1.0, the Panasonic Lumix G X Vario 12-35mm f2.8 lens is on sale for $698 with free shipping and 4% promotional rewards (around $28 to be used in future purchases) at B&H Photo and Adorama… The usual Panasonic tripling of the warranty via a mail-in rebate song-and-dance apply… Why can’t Panasonic just offer a three year warranty for all? 🙂