Did I do right?

Trip to local pawn shop offered three options: a. S-42, Russian import, sns I could see were matching,import stamped on barrel & obvious reblue($450) b. 1921 DWM,same as above,($425) c, Polish radom,take down lever, matching,WA 77,fair to decent original finish, NON IMPORT($425). I realize this is akin to heresy at this site but I got the Radom.The question is how do you determine the value of an import? Where does the value drop on a gun like a Luger because its an import? Please be gentle on the comments. I've got a medical history you wouldn't believe.

Thanks for the FORUM. I've impressed the local pawn shop gurus based on what I've read about Lugers.