It all depends on how you store them.
Just having them all touching each other MIGHT mean they get damaged, hence only trusting to buy stuff like that in person. As long as you don't jostle them or make them shift around fast, they'll usually hold up fine.
Do i trust you, as some random guy on the internet to not do that? NOPE, because who the fuck are you?
So online? I'd rather just buy new in box.
If someone can provide me with a bunch of pictures, i'll be more likely to buy used. But that's with a lot of caveats, like no pets and no smoking. Shit, i might even ask for a picture of his living room or bedroom, just because some people who smell like shit have gross rooms. Just look at how disgusting some of /toy/ is, despite keeping their boxes.
You can't really trust these slobs.>>9018581>That's before you even consider pain transfer or plastic melting together from storing them like this
How shit is your storage method if this is happening with any of your toys? Most of the toys /toy/ talks about aren't this shitty and when they ARE that shitty, they'll decompose NEW in package as well. See early Figmas and Revoltechs.
ALSO i suspect that early decomposition was because they lived in armpit states/countries and are too poor to afford air conditioning.