Me to has the same opinion because now it is the right time to sell the bitcoin, if you really had the bitcoin means. Even after some time again bitcoin may fall to lower at that time you can buy more bitcoin with the amount you made profit now.
I think the year 2017 would be the year of price fluctuations and we might see some lower as well as higher levels in this year so there will be many opportunities for those who either wants to get in or get out. However $1,000 would be the average price at the end of the year. This is my personal opinion and everyone can have their own so please do your own research before investing.
I am sure that the price of Bitcoin will always fluctuate. Not as much as it is now. But + - 50 dollars for Bitcoin is quite normal. For this, many traders like Bitcoin. And they hate him for it)