Pullbacks are healthy for the market...it's all about perspective.
Unabated rises in any market are not healthy and are a signal of overheating and the creation of a bubble. Pullbacks like this are healthy for a number of reasons, not least of which is that it prevents potential bandwagoners from blindly jumping in and throwing money at something they don't understand. We have to keep things in perspective. Bitcoin started the year UNDER ONE THOUSAND DOLLARS. No one should really be too concerned about the recent 25% drop because the annual return is still 1400% (!!!).
If you believe in Bitcoin and what it represents, these sorts of small declines should do nothing to dissuade you. Ultimately these dips are indicative of a healthy market and allow people to take profits while other people get in at reasonable levels. Long term this is beneficial. If you are long on Bitcoin than dips like this should not change your mind.