I'm curious about this too. As far as I know they have the same handle, same lock, and the same steel, so the only difference is the blade shape. Doesn't seem like enough of a difference to justify a $100 or so price difference.
Of course there must be something to it, because I would buy a Vector for the $240 or so they go for, but not a Kestrel for the $130 or so that they go for.
Jason aka medusaoblongata
"I have often laughed at the weaklings who call themselves kind because they have no claws"
I would think that in addition to the additional work that is required on grinding the blade, the higher price is also attributed to R&D, or "artist's fee".
It's like the reason a Monet costs more than a painting by John Doe. Or it can even be compared to computer software, say Adobe Photoshop. I can't see for the life of me how they can justify charging $600 for software but when all the people invoved are paid for their R&D work, it probably all comes out in the wash...
Just my $.02-
By the way... I have one of each (Vector & Kestrel).