As an old man who remembers the transition from vinyl to CDs, I can comment on this. When CD sales reached critical mass back in the late '80s, record stores were reluctant to re-fit their 12" deep bins to fit the new smaller CDs. So record companies were packaging CD jewel cases in a second outer cardboard package that was (you guessed it) 12" tall, so it could stand up in the existing retail bins. So when you bought a CD, the first thing you did was open up this cardboard box (the "longbox") and throw it away. Well, environmentally minded artists started complaining to their record companies about the waste, so some labels introduced the EcoPak, a mostly cardboard CD holder that folded over itself to enclose the CD. If I remember correctly, when originally sold, the EcoPak had plastic spines attached to it for stand-up stability, and the whole thing came shrink-wrapped. So the only part that was thrown away was the plastic wrap and the spines. And hey, the EcoPak itself was recyclable! (Of course, you wouldn't have the liner notes and artwork anymore.)
There was a retail battle between jewel box cases and EcoPaks going on right around the release of Achtung Baby, which was available in both packages, depending on the retailer (forward-thinking retailers converted their bins and sold the jewelboxes, while others carried the EcoPaks). We all know who won in the end.