Originally Posted by Carl_Bergstrom

Because your garden yamadori has to have something to make up for the fact that it doesn't have bark that has obviously been formed by the cumulative effect of three hundred high-mountain winters.

-Carl

(Even that's not a fully serious answer here. To some degree a serious answer would have to deal with the philosophical problem of the difference in value between the lighter in Abraham Lincoln's pocked the night he was assassinated, and an otherwise identical lighter of exactly the same vintage.)