Proper carbon steel Japanese knives are luxury items. They're beautiful to look at and at the same time, nerdy as fuck (reminds me of the U75 watch collecting thread).
Utilitarian vs Mainstream vs Specialists.
Forge work? What's the history. Who is the maker. The steel, is it carbon - is it white/ blue? Is number 2 better than 1 and what about the super hardened stuff?
Then you have maintenance, whetstones/ stropping, leather vs ceramic vs steel. OMG it goes on and on.
That Bunka of yours is a steal! Great price.
One question, are you scared of the K-tip chipping?