Er... yes. Yes, that's my point. That if you buy a "just tried in garden once" used gun, it could have had 30 rounds through it, or 30,000. It might work without trouble for another 30,000, or fail after 30.   Not a problem for those of us who accrue more than we use, rotate through them, and/or tinker. But for someone looking get a first gun, my assumption is that they'd want to maximise the chances of it lasting long enough to break it themselves while uPgRaDiNg it.

This is why I don't tend to sell my guns on forums, even though I would like to slim my collection down a whole lot since I don't use most of them and generally stick to the same handful; including my pistols (I tend towards MED guns so they're important!) across both regular play and Vietnam filmsim, I use 16 of my 41 guns, and of those I only use about 10 of them regularly. I spend a lot of time and money tweaking my guns to as near to perfection as I can, but people online don't know for sure that it works well, nor should they take the word of an internet stranger at face value. I think I'd sell face to face where the person can take it to the range and see how it performs.   That said, all of the guns I've bought 2nd hand from here have been fantastic or exactly as advertised, however I've generally only bought near stock, stock, or boneyard stuff that I then take away and tweak and fiddle with myself, as I don't trust most people's teching abilities. I've seen far too many horror stories of people buying "fully upgraded" guns that shoot about 40m and then die half way through the first game day of usage.

What does that matter? I obviously don't have a 800+ gun collection in my shed, they things I purchase I service and flip    You're thinking longevity, not second hand sale condition