If bitcoin had a stable price it would be popular. Even if the price is stable or not the popularity of this bitcoin is not too much popular. Because many people dont know what is bitcoin. Many people dont need to use it. Many people dont have care about bitcoin. However it is not too much popular right now in the future i think this is the most popular coin even if the coin is not stable price.
your correct i remember my friend that one who reffer to me in bitcointalk and explain the useful of bitcoin they say as of now bitcoin is not popular because many people don't know what is bitcoin but in the future people realize that bitcoin is Very important.