any. virtual currencies might be a fringe play elsewhere, south korea, their mainstream. millions of people buy it, cash it in. it s every day banking for every day people none more enthusiastic than college students. he s in between classes checking his virtual currency portfolio. he s made thousands of dollars already. it s like the stock market but 100 times faster. reporter: is it more addictive? definitely. the emotions related to it, it s more inflated than what you get in a normal stock market because it s on 24/7. you have to be constantly on the radar of what s going on. reporter: how popular is it on campus? the frenzy is big. the price is this or that. reporter: bitcoin exchanges like bit thumb have opened store