I have a Benchmade Emerson CQC7, chisel plain blade. I know they stopped making them sometime ago. Is it worth anything as far collector value goes, or should I go ahead and use it? Also have a fixed blade Robert Parrish hunter, with a spear point, 5 1/2 blade, and black canvass grips. Bueatiful sheath. Any idea on collector interest/value on that? Mike