$5k is a lot more realistic than the $11k it's been listed at, and like Brian pointed out there are a few nice used Series basses to be had for less.
That said, Starry Night is equipped with Anniversary electronics, reportedly the next best thing to Series... I would guess considering that bonus, plus some pretty unique custom features and premium wood, this one might fetch a bit more than a MK Signature Model would. He's getting warmer. I'm curious to see what it brings actually...