Home Depot offers the Masterbuilt Pro 30" Dual Fuel Smoker, model no. 20050412, for $99 with free shipping. That's $80 off list and the lowest total price we could find. It features dual-fuel capability, a flame disk bowl, four chrome-coated cooking racks (to smoke up to 80 lbs. of food), 735 square inches of cooking space, a 15,400 BTU stainless steel burner, and push-button ignition.
Update: Note that this item is currently on backorder, but can still be ordered at this price for delivery when available.