I don't really miss the lack of box art, and the industry seems to have shifted its focus away from it, in any case. You're lucky to get a DVD sleeve with a cover, some quick blurb in the back with a handful of screenshots, and that's it.
I bought Skyrim physically only because I wanted to spare my bandwidth the effort. However, the argument that one is cheaper than the other is false, seeing as:
A) physical copies might be priced close or identically to Steam releases in some cases, but the cost of schlepping your ass over to GameStop also counts. Fuel and/or bus fare.
B) the digital copies also come with their own extra fare, depending on where you're sitting in your bandwidth cap. If you're with one of the lenient sorts, then you pay extra if Skyrim or some other game causes you to go over the cap. If you're with Comcast, well... You get cut off. Which means that in some cases, you might have a purchase sitting in the rinks, ready to be downloaded, but be unable to actually nab what you legally obtained. Which sucks.
So seeing as convenience doesn't really apply, I think it's really down to personal preference. Do you still want to see box art on your shelves? If so, go physical or buy console games. If all you care about is the product itself, go digital.
It seems to me that this is all there is to the issue.