I like how the reasoning behind the move to MP3s instead of discs is that MP3s don't wear out. Because, you know, hard disks don't wear out either... And with the whole move-to-digital thing, you might think you have less stuff, but what you're doing is transferring your belongings from one device to the next over time. Over the course of your life, you're gonna own dozens of laptops and the energy and the chemicals released to build those aren't free. Compare that to books and disks you bought once and for all (granted they don't wear out). Maybe the move to all-digital is for the better, but it's just not that obvious to me.