A lot of investors and traders have been worried about the price of Bitcoin dropping but this is normal for the end of the year. Traders are selling of for tax purposes and people are busy now and don't have time to trade during the holidays. I think next week we will see a reverse with new record highs.
In my opinion, this is a great time to buy at lower prices before the trend reverses. Buy and hold. The price will definitely go back up and will most likely go over $20,000 next month.
Bitcoin Cash and Bitcoin Gold prices have also dropped so if you have been wanting to invest in these coins, this would be a perfect time.