Hattori Knives Japanese Kitchen Knives?

Japanese Kitchen Knives? - hattori knives

What makes the Japanese kitchen knife between the value of
$ 300 to more than a thousand dollars for a knife?

I read an article about the kitchen of a cook and
Speaking of knives:

"Personally, I prefer my Japanese steel knives, but there are some excellent quality as well as European knives. For people with large knives recommended budget Hattori (HD or go to the KD series - more than $ 300 cost knives). The Top knife is a picture of a chef's knife 27cm Hattori KD ($ 1,175). "

Can someone tell me why I should buy for $ 300. Knives
When my knife $ 8.00 enough? And finally
For too many years.