Bitcoin gives freedom to people from traditional banking system where they keep on paying heavy transaction costs and even the interest paid by banks is too low and inflation will eat away all that money but if you have bitcoins in your wallet then the same amount of coins can give you higher amount of money in future when the price of bitcoin will start increasing so instead of saving money in banks its always good to save money in bitcoins.
Yup, that's one of the things that make the most of those who know the bitcoin use it. Because the currency is not the usual bitcoin or currencies that are used only to be Exchange in business transactions. So, even though right now it's still very little bitcoin users, but if in the future the bitcoin will definitely many who use it and give an advantage to those who keep it from now
Yeah bitcoin is still very new currency to many people and either they have not heard about it or they don't know how to make best use of it but they will start using it once bitcoin will be publicly accepted which will draw attention of many people towards it.