I prefer stable prices. Stable price that can make us comfortable using bitcoins because prices do not always change, and sometimes a change can cause us harm. But this is definitely ruining some, including a trader. Due to a trader's main job is to take advantage of the price of the bitcoin is unstable. They see the profit margin. It is sometimes like there isn't true, but I personally choose price bitcoin stable. 
Very few expect a stable growth. In my view stabilty is a must, but I prefer the growth has to happen in large scale and minor fluctuations need to take place regularly within the range of $50 and above. This is how one could make a better earning through bitcoin.