One way to look at it is via grading of the mess you get once you've paid the purchace price plus shipping and handling.

For instance.

Pay standard rate for a screwed up gun
PAIN

Pay over standard market and get a screwed up gun
PAIN IN THE ASS

Pay way over market for a gun that's for all intents and purposes gone from this world
ROYAL PAIN IN THE ASS

See?
Big bucks can get you a royal grade gun, even in the respect of a screwed up one!

--Tinker