Factory Authorized Outlet via eBay offers the DuroMax 3,500-watt Portable Gas-Powered Generator, model no. XP4400, for $299.99 with free shipping. That's $30 under our December mention and the lowest total price we've seen. (It's a current low by $96.) It produces a 4,400-watt surge and 3,500 watts of continuous power. It runs for up to eight hours at a 50% load.
Factory Authorized Outlet via eBay offers the DuroMax 8,000-watt Portable Gas Electric Start Generator, model no. XP10000E, for $774.99 with free shipping. That's the lowest total price we could find by $225, although we saw it for $75 less last fall. It features 8,000 watts continuous (10,000 watts peak) output, a 16-horsepower 420cc engine, electric start, 10 hours of runtime at 50% load, 8.3-gallon fuel tank, and four outlets.