Pine nuts have long been desired for their unique flavor, use in traditional recipes, and health benefits. They're also one of the most expensive nuts in the world, selling for upwards of $117 per kilogram. So what makes them so special? And why are they so expensive? MORE SO EXPENSIVE VIDEOS: Why Japanese Calligraphy Brushes Are So Expensive | So Expensive youtube.com/watch?v=ZEMi3s2IDS8 Why Japanese Ruby Roman Grapes Are So Expensive | So Expensive youtube.com/watch?v=EE7NqzhMDms Why Hasselblad Cameras Are So Expensive | So Expensive youtube.com/watch?v=C-nStXCjEYg ------------------------------------------------------ #PineNuts #SoExpensive #BusinessInsider Business Insider tells you all you need to know about business, finance, tech, retail, and more. Visit us at: businessinsider.com Subscribe: youtube.com/user/businessinsider BI on Facebook: read.bi/2xOcEcj BI on Instagram: read.bi/2Q2D29T BI on Twit...