amok: are you sure about that? for me it is most definitely a good thing getting rid of all those boxes and maintaining / taking care of the disks. I have moved a couple of times, and each time now I got my game library with me wherever I go, no hassle.
I'm in the same boat to be honest. Even if I were fond of physical releases (which I'm not), I would not be able to carry them around with me or, usually, have the space to store them.
However, I do know people who are particularly passionate about getting boxed version and you have to admit they are mostly left with nothing to buy these days - apart from a few developers that are offering boxed versions as higher-tier crowdfunding awards and perhaps a few stubborn enough to keep releasing on physical media like the industry used to do in the old days, it's just a mangle of Steam-based releases or nicely packed online codes, as OP has mentioned.