I don't know why they settled on that asking price and apparently they will not come down.
As casper50 said, you can find an entire rifle with that action - better even - for less than what they are asking. My own 10.75x68 DSB Mauser was consigned at a shop for exactly one year at over $1K less than what they want for that action with no takers. A lot of interest, but nobody bought it.