Back in the day when I was on a Neo Geo kick, I distinctly remember buying a bundle of common AES carts for a good price. I could smell the stench of stale cigarette smoke even before I opened the shipping carton...goddamn, nothing I did could remove the putrid smell of smoke from the cases, carts and manuals.
I later ended up selling that bundle at a slight loss just to get the damn things out of my sight.