I'm seriously thinking of trading in my P99 9mm for one of the newer 2004/AE models. Does anybody know how much they go for these days? Mine is an older generation model of course with an AD date code. I've sanded down the trigger guard bump, and it has a scratch on the right side across the slide serrations as seen in the picture below, but it's in otherwise great condition (only shot it 700 rounds) and has worked flawlessly with all of the ammo I've put through it (115grain on up to 124 grain +P). This is not an official for sale thing since I'm not 100% set on it (plus it'd be in the for sale section), just curious what I can expect for a trade in value or just plain selling it.