With the borer beetle shortage this year, kona coffee is experiencing a shortage in supply. This means that, even if you find a farm that is selling kona coffee, the prices are usually higher than normal. 

I’ve compiled a list of kona coffee suppliers here: 

http://www.konacoffeebuzz.com/buy-kona-coffee

Many of the larger farms, like Koa and Greenwell, have been purchasing coffee from the smaller kona coffee farms in order to meet supply. It means that your best bet when it comes to getting coffee is to shop at the larger coffee farms.