At some point we are going to run into the issue of media players just cutting their way out of our pockets. You’ll have to buff the edges so you don’t slice your fingers off while changing tracks. I guess we’re not quite at that point, but 4.5mm is pretty damn thin. This thing doesn’t have much branding, and I’m not sure I can count on a place called “Component Warehouse” for support if my player snaps in half during shipment, but it’s all worth it to take off that last 2mm.