Playing rubiks is fun, a hobby and good for impressing people. Most people won't make any money doing it but that doesnt stop them from enjoying it.
Cube 8 is one part of playing rubiks though. You may search in youtube the video. Playing Rubik's Cube somehow enhances your eye-hands coordination. It is also a way to practice your mind on thinking solutions about a particular problem. If you search the internet you can find some online playing of rubiks. And this is amazing! It will surely bring more benefits to those who love to play rubiks.