Was at Walmart and saw these 40lbs bags for $5. They had a skid full. My pops loves cooking with hardwood. I assume this would be almost the same price across all the Walmarts but just in case YMMV!!!! Regular price is 19.99 and Amazon has 2 for 49.
From Amazon: Create just the kind of cooking environment you need with the Competition Blend of BBQ Wood Pellets from Pit Boss. It is versatile and adds flavor when cooking. The BBQ pellets are available in a 40 lb bag, providing you with enough to get it done. No artificial flavors, chemicals, glues or spray scents have been added to change the product in any way. All of the cooking pellets have been made from wood sourced across North America to create a better local product. It burns hot and clean at a restaurant-quality level in any pellet grill.