It's all about supply & demand. If someone wants one of these, then he might very easily spend a very large chunk of the asking price just trying to find one as this is the original factory piece, so for some, the high price buys freedom from agrivation & grief, particularly if one is cash rich & time poor.

It took me about a year & a half to track down my Hemi, & I can tell you, I would happily have paid a premium to save all the drama. [& there was a lot of that]

Supply & demand, that's what controls the price, & for some of our small Datsun stuff we gotta remember, they don't make them anymore.
Such is life.