i don't claim to be an expert on this... but i have my doubts about the validity of these claims.... the way the market works is that as things become produced in greater quantity the relative cost per unit comes down... so... what may start off costing $2.50 a gallon to make may eventually only cost $1.00 to make... or less... it will depend on market conditions... i know you can make vegtable oil CHEAP, why should biodiesel be any different... as production is increased the cost per unit always comes down... the ONLY reason the prices for oil KEEP spiking is volitility in the market... and the oil companies take FULL advantage of EACH spike... i will read that article and then see if there is anything intelligent i can add to this conversation...