More from So Expensive A triangle pointing ... this process takes means that just aren't that many trees around. Some of the most valuable bonsai are over 800 years old, and so the supply isn ...

So what is it that makes bonsai so expensive? Bonsai is the art ... process takes means that just aren't that many trees around. Some of the most valuable bonsai are over 800 years old, and ...

In many cases, thieves made off with expensive plants in the dead of night. Mitsunori Imai, 60, who operates the Warabi-en bonsai garden here, was left speechless after he found many bonsai trees ...