Now a days all the success trader are busy in buying bitcoin because still the rate of bitcoin is low now and the reason is that still there are less number of users throughout the whole world which are following bitcoin as they increase price will be increase.
yes this a an excellent decision because the rate of bitcoin is going increasing with time and as you can continue buying for long time then can a big profit in future by investing your bitcoin or by selling your bitcoin and the reason of increasing rate of bitcoin is because of the increasing percentage of users of bitcoin.
Its just a buy and sell thing, You buy those coins when the value is low then sell it again when it increases. If you are really good at marketing then you better join trading rather than working on a day job because trading will really make you earn more profit when your good at it.