i dunno if most people have the patience or the guts to ride it all the way to total success. comes a time when you can't take much more. holding it is doubly tough because once you're invested you start looking deeper and become ever more obsessed. when you have all that knowledge it becomes frustrating that more people ain't feeling the same way and more people is what this thing needs above all.
I think age has to do with this as well. 10 years ago I was trading penny stocks on a daily basis. Now I just like to invest in proven stocks and just let my portfolio grow without much work.