I've browsed a very popular auction website almost daily for 9 years looking at knives and sold more than one thousand Schrade and Camillus knives on that same site and all else being equal I have never seen a factory second sell for more than one that went out the door passing the factory inspection, all else being equal.
I think your question is a good one (and since you didn't ask how much your specific knife was worth, passes the sticky test). My obsession with knives began when Camillus went under and around that time I saw an unused factory second (XX tang) Camillus Riders of the Silver Screen knife selling for what I thought was a relatively low price. Knowing that some double struck coins (factory seconds) can sell for thousands, I wondered if the same held true for pocket knives since there are presumably many fewer seconds in circulation. After gaining some experience buying and selling, I came to the conclusion that seconds are just that.
If there are any Schrade or Camillus production knives out there that are seconds, yet sought after, Id be interested in learning the story behind such a knife.