We don't really know why Apple chose Glass + Aluminum for their headset, but we do know for a fact that:
- 1 Their customers have historically chosen metal and aluminum for their products, and Apple is in the business of building what their consumers prefer.
- 2 Glass and Aluminum conduct heat better than plastic. The 2hr battery suggests thermals are a great consideration where the materials chosen were not just for aesthetics. Perhaps plastic could've worked, but see point #1.
- 1 Their customers have historically chosen metal and aluminum for their products, and Apple is in the business of building what their consumers prefer.
- 2 Glass and Aluminum conduct heat better than plastic. The 2hr battery suggests thermals are a great consideration where the materials chosen were not just for aesthetics. Perhaps plastic could've worked, but see point #1.