Black & Decker LE750 Electric Edge Hog for $67.74 shipped.  Here is a screenshot for your reference. It weighs 12.4 lbs. and features a 11-amp 2.25-HP motor with 150 in./lbs. of torque, 3-position blade depth adjustment, and built-in cord retention secures extension cord.  Most places have it for about $74 or more.