I work at Blockbuster and it's amazing what people do to games. It's like they leave it out and just walk over it or something. Seriously, and used games too.
I think what a lot of people do it leave it so the readable side is facing the air and the non-important to play top part with the logo so you know what disc it is is on the ground, which I've never understood. I put all my games on the readable side down on something level and smooth, and usually clean, never had a disc of mine not work. You think about it, leaving that readable side up means it's exposed the air, dust, dirt, grime, and if anything runs over it accidentally it leaves a nice, fuck-this-shit-up scratch that leaves you pissed off and angry
People do NOT know how to fucking take care of discs. And it's not even the rentals, it's their own ones that they try to trade in and they look like garbage! Seriously, it's fucking amazing this people call themselves gamers when they care little to none about their games! It's not even a matter of not putting them right back in their case. Just put them somewhere level and mildly clean and you're all set, you don't need to leave the important disc up facing the dangers of this world.
People just don't take pride in the condition of their stuff anymore...it's sad
Don't get me started on cover art. I'm a stickler for it and almost refuse to buy games without the art. I can understand a guide book being taken out, but the cases? It's not like it's a ittybitty thing, they're pretty fucking big...I can't talk about this anymore...people just don't take pride and care of their things anymore, it's fucking disgusting how careless people are with not only their own things, but things that they're borrowing, from friends or a rental store...