I sold some of my bitcoins when it hit $300, just enough so that I paid for my previous investments (i.e. when I bought them at $8 and $70). Now it is basically

I sold some of my bitcoins when it hit $300, just enough so that I paid for my previous investments (i.e. when I bought them at $8 and $70). Now it is basically a free ride for me. If they crash to 0, I haven't won anything, but neither have I lost anything. So I'll continue to hold on to them for now.