Walmart offers the Sportsman 1,400-watt Portable Gasoline Generator for $169 with free shipping. That's tied with our September mention and is the lowest price we could find by a buck, although most stores charge at least $200. This generator runs on unleaded gasoline and features a 2.6-horsepower engine, 3,600 RPM, recoil start, 2,000-watt surge, circuit protection, and 9-hour runtime at 50% capacity.