I think the bull run has begun. This time the price of bitcoin will grow along with altcoins in a mutual manner, which haven't happened in the past days. When the price increase gets ignited automatically we'll experience $2000 mark within few weeks time.
Just like you, I choose to remain positive about Bitcoin because I have been exposed to its history and behavior. In fact, we should be happy that the dip is not that enormous if we have to count it percentage-wise. I am so sure that Bitcoin would be coming back soon and we can experience another bull run maybe within the first quarter. Bitcoin is just gathering some needed energy before making another surge. This has been the way it is and we just have to wait and remain optimistic...as always!