People have the right to ask for whatever they want, but nobody has to pay it. What I find irritating is when I see an overpriced gun sit for three or four weeks, then I make an offer and the seller acts as if I've lowballed him.
"But I've got $XXX in this gun if you count the accessories" So what? Your accessories have depreciated along with the gun.
"I paid $XXX and that is all I am trying to get out of it" I actually sent a guy a link to a NIB gun priced lower than his used one, and he acted like I was a criminal. You may or may not find a sucker to help you make your money back, but you are not entitled to recieve all of your money back on every gun you buy.
"They don't make this model anymore!" Yeah, I'm sure our grandkids will be fighting over them.
"It has less than XXX rounds down the pipe!" Yeah, so are you going to give me a 2 year warranty on it? With most firearms, the "NIB" price includes a warranty to the original owner, which ya don't get when you buy from Joe Schmoe.
The OP's Romanian AK example is the perfect example. These are now commonly found under $400 new (Classic Arms had them at $360 during their sale a couple of weeks back). Even if a used AK is in unfired condition, it is less valuable than an actual NIB one with a warranty. If you find a sucker, good for you... but don't be offended when someone offers $25 or $50 less than the lowest NIB price. A $300-$325 offer is fair given current market conditions. I'm sure that hurts if you paid $750 for it eight months ago, but them's the breaks.
I suppose used guns are often great deals, and guns hold their value relatively well for a reason. But lately, I've noticed a lot of this stuff (not really on THR but on other sites) and I really had to vent. Hell, I bought an M&P15 for almost $1200 four months ago... and yesterday I saw the same one for $900 plus shipping with five free Pmags! Guess what... my $1200 AR is no longer a $1200 AR... PERIOD!
(Yes, I feel better now)