The stable price is good for the adoption of the bitcoin. If the price rises 2% a week, it is very good.
But how and when we can achieve stability? We all know how this is important for the future of bitcoin.
In the end it is about distribution. The better it is distributed the harder it will be to manipulate the price and thus we will get/reach stability.
Although it is a long while i am sure it will happen someday.