I voted "no", because I cannot abide Steam and therefore don't want the retail boxed version to come with a requirement to use that crap service to play the game when I'm only interested in the single player campaign and none of the online extras like achievements and all that pointless stuff (and please spare me any replies of the sort "but why? steam is so hot!" - I've only recently used it for some time to play single player only games, and the experience has been ... less than stellar, to put it mildly. It really ticks me off.)
Same goes for any other game, in particular Fallout New Vegas. I just had to cancel my preorder for the collector's edition since I learend of the glorious Steamworks integration - "[...] best, least intrusive experience for PC gamers." my ass! Hell I even like SecuROM better (especially if you can choose between disc check and online activation) or whatever Alpha Protocol is using. As long as I don't have to put up with any additional UI on top of the game's, don't have to be online to play and revoking authorizations is possible, I'm fine.
Of course, I have nothing against offering it on Steam as a download, though. To everyone their own.
You can completely ignore
all the pointless online extras.
Optional.
You can disable the in-game steam UI.
Optional.
You don't have to be online to play. There is an
offline mode.
Authorization/Activation happened the
moment you bought the game from steam. That was all about it. It lasted maybe seconds and it was all done. You must be mistaken it with Ubisoft's DRM which requires constant connection during singleplayer and will kick you from the game without saving if the connection is lost.