I'd imagine its the start or continuation of the phase out. Start with smaller stores sending stuff to bigger then keep doing the same until only the biggest are left. Also somewhere along the line stop getting more stock.
That said, have these not been discless caseless for ages (going as far as the boxes & manuals being thrown out*, if you did trade with them).
*-The cases are better plastic than the modern eco cases yet its those gonig to landfill...Kind of says a lot about consumerism...
Gamestop must have warehouses of PS2 games by now. It's been mentioned they go to stores that move them. Do you think Gamestop also has deals with other countries, supplying foreign chains with older games that are still the mainline consoles in those places?
I'm just curious as to how Gamestop capitalizes on buying the massive quantities of used product they take in.