For me, not a problem. I'll embrace the new technology.
I don't have a problem with embracing the new technology. Part of that comes from being on an ISP who hasn't started metering service, I imagine. I haven't bought a physical copy of a movie in probably 2 years; mostly I rent through Xbox or Apple TV now.
My problem is, sometimes, the "old way" is just how stuff comes. For example, the collector's edition of Diablo III included:
- A DVD of the game. Ok, I can download it without a drive, it just takes longer.
- A USB stick with Diablo 2. Cute. I can work with that. I can also download it if I lose the USB stick.
- A CD with the soundtrack. Here, there's nothing I can do. There's no way to replace it if I lose the physical media (until I load it into iTunes), and there's no way to load it into iTunes without an ODD.
There's lots of little examples like this that mean that for 2012 and 2013, at least, lots people will find themselves quite annoyed at not having an ODD built in to their primary computer. If they made the trade-off for portability, good for them, and they should easily adopt the external. But for a stationary computer, it just doesn't make a lot of sense yet.
The world is getting there. It's not there. And the gain from removing the component from a stationary computer is simply not there. 25mm and 1 oz doesn't mean much. Failure rate doesn't mean much either - the people arguing this are primarily the people who don't plan to use it and won't even notice if it fails.
.. That said, lack of an ODD won't deter me from buying a top iMac when it's released. I will curse Jony Ive, but I will still pay him.