I have three GameStops in my area. Two told me they had gotten rid of their DS cases a long time ago, and the other one told me that they had just taken them out to the dumpster. After I left the building, I walked around to the dumpster and investigated. I didn't see them at a glance, but I knew they were in there. It was broad daylight, and there were people that could see me. I ended up deciding to come back when fewer people were around to nab the cases, only to find the dumpster empty when I returned. I'm pretty disheartened about it.
It's one thing with the normal disk-cases. Anyone can go to Wal-Mart and buy a box of the things, but these are exclusive to the DS, and can only be ordered from Nintendo (That I know of.) The fact that GameStop is literally just hurling them into the garbage is unbelievable, and disgusting. What a huge waste! One might think they could throw them in a box with "$0.50 a piece or $5 for box" written on it and probably made a small profit. I'd have been happy to buy them.