In my opinion it comes down to a return on investment.
You should ask yourself, what else could i do with that investment money, and evaluate whether you could put that money towards something else with higher value/better returns to yourself. For example, if you expect to earn 20% return on your investment into Bitcoins, or 30% in a passive income (e.g. ads on a website you do not actively manage) business. You should go with the 30% in the business.