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LAS VEGAS, NV - JANUARY 08: A general view of the Bitcoin booth at the 2015 International CES at the Las Vegas Convention Center on January 8, 2015 in Las Vegas, Nevada. CES, the world's largest annual consumer technology trade show, runs through January 9 and is expected to feature 3,600 exhibitors showing off their latest products and services to about 150,000 attendees. (Photo by Ethan Miller/Getty Images)

LAS VEGAS, NV - JANUARY 08:  A general view of the Bitcoin booth at the 2015 International CES at the Las Vegas Convention Center on January 8, 2015 in Las Vegas, Nevada. CES, the world's largest annual consumer technology trade show, runs through January 9 and is expected to feature 3,600 exhibitors showing off their latest products and services to about 150,000 attendees.  (Photo by Ethan Miller/Getty Images)