Eh, what you're doing is right, but not for everyone. Just imagine that what you're describing as an easy task may be very stressful for some. Seeing it rising high enough that you're thinking "hey, I may be set for life", not selling and then seeing it drop low enough to think "did I miss my chance? I could have been set for life" may be a very stressful way to live for someone else. But good for you that you are able to do it.