I don't get it. I was issued a metal macbook once. I had to buy a plastic case for it, because the bare metal scratched my fingernails.
Why would we want a hard metal case instead of a soft plastic one?
Nice multi-purpose titanium laptop. You can even trim your fingernails on the same!
Most people are not looking to scuff up the face of their fingernails, which is what happens when you handle such a laptop naturally.
If plastic cases bore any significant risk of damaging the electronics, someone would probably have noticed that by now.
