If you look at it terms of straight price, I think it's fair to middlin' at best. However, IMHO, if trying good exotic coffees, like trying new cigars, is a pleasurable experience, I think it's very worthwhile!!!
My problem with many coffees is that they don't advertise as "blends" but are still mixed with other coffee beans. It's been a long time since I had a good cup of pure Kona. Green Mountain coffee overall has received some nice reviews at http://www.coffeereview.com. I think the coffee of the month would be worth a shot, especially if you were happy with their quality. I'd love to hear what you think if you go for it!!!