Finally some carnage. This is starting to look like a "real bitcoin crash"TM. But don't worry; this is not the end of Bitcoin. Even if we fall to $3,000, this is not the end. Bitcoin has survived 3 previous crashes of magnitudes 15x, 5x, and 6x; this crash has cut the price by a factor of only 3x -- tame in comparison.
Bitcoin is a virus. The reason we won't fall back to where we came from at $1,000 is because we've infected so many new people -- our base of "hodlers" in now larger than ever. Also remember that bitcoin has just received more global attention than at any other time in history. We now have another opportunity to get some real work done on adoption, usage and on-boarding new people, as we build a pad for the next launch.
I think Bitcoin is destined to become a global peer-to-peer electronic cash system that will change the world as we know it in many ways. Do what you need to do, but don't lose hope.