How much of a premium would you be willing to pay? Every variation from the norm affects cost. Adding another material, or materials (I dont know how their current selection of internal parts would play with a carbon frame) would change the production process and then the finish work required would drive up that premium pretty significantly.
Very true!
EVERY finish's quality is in the prep work. even something as simple as blasted stainless requires the correct media processing, and cleaning and masking of the part to produce the same finish every time.
A high polish blue is one of the more demanding finishes (I home "blue" stuff sometimes), and screw-ups are more noticeable.
You just want shiny? take a buffing wheel and go to town! then check all the edges that are supposed to be sharp, check all the spots that are supposed to be flat.
Premium bluing, like most things, dosent take a whole lot of secret "skills", it takes patience, a sure hand, and being willing to invest the energy into the product.