So, what makes a successful Seeing Eye dog? And why are they so expensive? This video is audio-described. More from So Expensive Guide dogs from The Seeing Eye are specially bred, trained ...

So why are pedigree dogs so expensive? Every year, over 21,500 dogs from 43 countries compete at Crufts, and it's here that you can see some of the world's most sought-after dogs: Akita ...