Because he's the only one would can pick up the $%#^#! thing! LOL!
Have you ever tried to pick one of those things up? Let alone *YIELD* it in a battle scenario?!?
It is heavy. George Ohashi dropped it on me during a demonstration, it knocked the air right out of me.
I really liked the way that nyoi-bo is used, stood up on one end and often simply walked around and then thrown or sometimes simply dropped on the opponent. It's a cool weapon, if limited.
Now i've got a doubt bout the name. Nyoi Bo is the name of the staff of the Monkey King, the bo has the ability to change it's size according to the will of its owner. So, is this the real name of this weapon?