I would hold them and I will. I don't have that many bitcoins but I think the price goes up so I'm making lot of profit with that I have. I would totally risk to be a billionare
That's true. I mean most people who struck gold in any market or venture has always had that "leap of faith" moment where the risk, although it is calculated, still has lots of room to go the other way and backfire. However, that's how businesses are; there is always a risk connected with it and those who has been successful are the risk takers that tried on a new idea or took the plunge and worked. Thus, in this case, I would try to play my cards right. I would take the risk of being a billionaire, but not be so aggressive that the line that separates risk and stupidity blurs.