I personally do not like to purchase games digitally. There's just something magical about going to the store, picking up a boxed game, staring at the amazing box art, bringing the game home and putting the disc in the drive.
That being said, I know that several game distribution companies are leaning more toward digital distribution, with Steam holding a large chunk of that market. Is it possible to buy a retail boxed copy of a game, but still get the benefits of Steam (e.g., automatic updates, install on multiple computers, etc.)?