For a while, I've been coming across more and more stories about threats to the coffee industry as a whole. Frankly, the price for higher quality beans is going to sky rocket from a mixture of global warming, and disease that is enabled by global warming.
Simply put, the smaller farmers we rely on for the really good stuff, are having trouble coping. Plants are dying which is causing prices to go up. Cheap Robusta is the only thing that seems to be surviving well enough.
Here's a well written article that will apply to us in the States as much as New Zealand.