We had a company make pellets using a combination of corn stalks, soybean stubble and dried DDGs for the local ethanol plant. They bought the DDG from the ethanol plant but got the rest of the material free. These pellets were made locally at a company that was making feed pellets. They were about a dollar a bag higher then Indecks at the time and they had a lot more ash then the Indecks. They were available for approx. 3 seasons then I never seen them again. I know they were experimenting trying to get a blend that would provide good heat and less ash but evidently people didn't feel like spending a extra dollar a bag and have to contend with the ash problem.The very fact that it's quite possible to pelletize such things as yard waste and lawn clippings will make units like the Buskirk and the Chinese imports attractive. Someone like me sho can produce yearly, tons of straw can, with the proper equipment, produce pellets to heat all winter with, without relying on a store to have them. Its' still the equipment cost however. The absolutely cheapest hammermill/extruder setup I've seen is almost 5 grand and thats a questionable quality Chinese unit. Thats a lot of jack to make pellets (for an individual homeowner).
If you get 2/3 of the raw material free and have to charge a extra dollar a bag over your competitors price and still end up with a poorer end product the hand writing is on the wall.