Home Depot offers the Nexgrill 5-Burner Propane Gas Grill with Side Burner in Black, model no. 720-0888, for $169 with free shipping. That's the lowest total price we could find by $59. It features a 480 square inch main cooking area, 55,000 BTU stainless burners, 12,000 BTU side burner, and temperature gauge.
Of note, this item is currently out of stock, but can be ordered at this price for delivery when available (currently estimated at December 1).