As one of its daily deals, That Daily Deal offers the Extreme Commander X3 Remote Control Boat
with free shipping
. That's $170 under list and the lowest total price we could find, outside of the mention below. It measures 34.6" long and features a top speed of 10.3 miles per hour, rechargeable battery, metal propelling system, and 10 minutes of travel time. Eight AA batteries are required for the remote control, but are not included. Deal expires March 4.
A close price: Extreme RC By RSI via eBay
charges $49.99 plus $10 for shipping.