You should do which one you think will benefit you the most and which one you know is best to do. If you want to accumulate and hold bitcoin for the long term, which is obviously the safest way to profit from bitcoin, you should do that. 
 
Some people feel like holding bitcoin is really a waste of time due to how they feel that they can really make a fortune if they trade it, which many do, but a lot of people have lost their investment due to the wrong timing on the bitcoin market. It's highly volatile nature makes it more risky and harder for its movement to be predicted.