Unfortunately yes bitcoins are down today i donnot know why maybe a lot of people had sold their bitxoins because it is almost christmas and a lot of money is needed. But that is a great thing to buy a lot of bitcoins also because we all know that the value of bitcoins will always rise be because they still in the trend this year and a lot of people are still jlining the community. But it is kind of risky to invest and buy because we cannot say if bitcoins will still be as successful as they are today in the next years. So it is up to you to take the risk or to avoid it.