Bitcoin will never be accepted as a "real" currency if it continues to fluctuate like it has in the past. Nobody wants to buy $600 worth of currency only to have it drop the next day to $480.
In my opinion, there are a select few people making HUGE money manipulating the market. There should be no reason Bitcoin rises and falls $100's (Sometimes over 100%) in such a short time.
we can not expect a stable price of bitcoin , it will not make bitcoin have something special anymore , just leave it like that . bitcoin can be more than just a real currency , i believe bitcoin are more useful than fiat currency.
bitcoin have a role as commodity , property , investment , financial technology and currency at once!