QUOTE(antonsmi @ Dec 18 2013, 04:31 PM)
Right now as I see Bitcoin Exchange rate is $564.23, what is reason for this? Should I sell my Bitcoins now??
Be very wise and don't panic sell. Hold them The reason for it going low is because people where selling out coins and china and a few other big places where they have many using it cashed out. Give it a few weeks and like to day its back to $700 odd and will continue to go back up over the course of next year. Just hold them and don't be stupid to panic and sell.
If you really want to sell out that low Ill buy them all day long off you. However as advised it is not wise to sell them with so much going on.