Those investors who are that pessimistic will not get you any where but rock buttom. We have to remember that bitcoin started at zero value in the market and it started to crawl up to gain trust and value. Now that bitcoin is facing a lot of detractors due to it's popularity and being threatened by it's fast growth over the world i can say that the drop of its value is just a natural effect. But  i know that it will regain so and the value will rise again. So dont listen to those negative people. You know what is best for you so do as you please with your investment.