The only Apple product I recall (that I’ve owned) that chipped was the PB G4 Ti (1GHz).
I had a mirrored back iPod — I never owned one and forgot the earlier iPod touch adopted the chrome look — which I stored in a microfiber pouch-type case. In the end, it looked in better condition than most used units but indeed had plenty of hairline and “micro” scratches.Remember the iPod touch with the beautiful silver back?