Lets think why below 1000 is not likely for a moment. Bulls and Bears are clever, if they pull BTC price under 1000 USD, public will get aware of this opportunity and start buying bitcoins and again regular public will be rich.
Pigs Get Slaughtered.
Whales will tend to buy all the bitcoins without public getting aware of this.
Under 1000 USD will be news everywhere, and public will be willing to take to risk to buy bitcoin under 1000, without caring if it drops to 100 usd or under.
Just a basic mentality...
1800 is my last point...