This is true, trading may or may not pay up all the effort that you make, however holding if done for long enough is always going to pay, however we must understand that it is still a difficult thing to do as bitcoin can go down in price really quickly and people can get nervous about that movement and decide to sell their coins because they got scared the price could go down even further, but if you can control those feelings then that is when the potential for huge profits for your portfolio really opens up.