It is not true business is not only the calculations and multiplication because to be a business man you will have to know the all ups and down of market.  Bitcoin is for those like a business who have the guts and patience to hold bitcoin fro sometime even if the price is low. It is now very easy to build your own business with bitcoin, as I have made some kindda business setup and I tried to make it hold and always buy back with the amount of profit, because it is digital currency and it has high scope in market now everyone is demanding for bitcoin to make some business and to save for future as well, so every smart and experienced business man is now showing positive attitude for bitcoin business.