We have examples. I know people who haven't bought new dryers because of the cost involved. They're not cheap things to buy, and they're not something that's used every year in a lot of grain operations, so they stick with the old dryer. Once again, they're paying the carbon tax on propane.
Typically, natural gas dryers are more efficient than propane ones. Natural gas costs a lot of money to have brought on site to a lot of farms. Those are just examples of programs that could help bridge the gap until the new technologies are here, but as it sits right now a lot of producers are having trouble funding more efficient grain dryers.