Good question. Basically we always plan how we will earn profit from our invested funds, I can guarantee that there are most of us who will get confused to answer what to do with the profit earned from the invested funds.  Because most of us don't plan what to do with the profits.
And to be honest with me it's pretty much the same, I've been confused about it all this time but I'm thinking that since I'm currently thinking of holding bitcoins until around two halvings following the DCA method.  Later, the thought of reinvesting may come to my mind. However, I don't have any thoughts of doing business or anything else with that profit. I don't know what will happen in the future.