It blows my mind how digital goods are real. You can buy music, ebooks, VPNs; it's crazy, and bitcoin is the perfect medium of exchange for those goods.
Porn. Ecommerce. Pirated films. Pirated music. Digital microscopy. Eventually every physical product will be a digital good in the form of a CAD file that you [3D] print at home or at your local repurposed Kinkos.