Walmart offers the Oklahoma Joe's Charcoal/Gas/Smoker Combo, model no. 15202029, for $449. Opt for in-store pickup to dodge the $99.97 shipping charge. That's the lowest total price we could find by $90. It features 1,060 square inches of cooking surface, three burners, 36,000 BTU, temperature gauges, and a 12,000 BTU side burner.