The blue market all over the world, some call it the black market, is a source of bitcoin expansion that is largely untapped. Including some market that are legalized by the dominators, but that they don't like and therefor choke. A fresh example is the medical marihuana market, where the players wanted to establish a special bank. It also includes businesses that compete with the cronies. With time, these markets will use partly fiat paper rectangles as now, and partly bitcoin.