but come to think of it, those little amount of money that you want to be keeping as savings why not use it and invest in BTC continuously becaus that money you want to keep as savings can also be called your (discretionary income) rather than keeping it in a bank as savings which will not bring you profit in return, why not use the money and be buying BTC and hold it for long period of time, no money is too small to be invest.
The way you said it is just too simple, do you think is everybody who believe in Bitcoin investing? We have many who believe that keeping money in the bank is better and we also have those who believe in Bitcoin investing where you hold everything in your wallet for it to grow and give you something profitable, it goes two ways. Remember that is not everyone who have that patience to wait for a very long time for your investment to come out big and before you convince people to start making Bitcoin their bank in investing I think you'd have to preach very well like you're converting a sinner to a born again before you can get at least 1 or 2 persons, it will be hard, to me is best for everyone to choose which ever way he or she wants to invest his or her money, weather in Bitcoin or bank.