I'm annoyed a bit by the missing DVD drive too. It's not that I use it often, but occasionally. Stores still sell movies, music and games via CD/DVD. The usage of the external superdrive is followed by another issue - the total lack of USB adapters:
So you need external DVD superdrive -> USB
So you need external Backup Storage? -> USB
So you need external Ethernet adapter? -> USB
So you need a mouse? -> USB
So you need a mobile internet stick? -> USB
2 USB adapters totally destroy the workflow.
Professionalism in cMBP:
Put DVD in, plug ethernet cable in, plug mouse in, plug backup storage in
Professionalism in rMBP:
Plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in, plug out, plug in
