It's smple - supply and demand. I watch more and more DIY TV shows comparing composite lumber 2 100% wood lumber. It's a no-brainer when they discuss the treatments 4 wood lumber and the chemistry - ugg. The consumer wants recycling! Plus they/we want construction materials that do not need maintenance (ie no painting, etc.)
They/we are and will continue to buy products like ChoiceDex. Supply and Demand.