Let's not argue semantics here, mate. A drm system explicitly states that you don't own the game and merely allows you to play the game. For that matter the publisher could even ban access to your game implicitly...A drm system is actually a euphemism for a rental as it is not you who controls access to a game but valve and I would like to reiterate that you don't actually own the game, the publisher does...In the unlikely situation that something happens to steam then you ostensibly no longer have access to your games. The difference between purchasing a game in a 'traditional sense' as you state is you own a license to a copy of the game. That copy is yours and once you key in the cd key and use it any fashion you like...offline or online.You don't have to validate your credentials each time you play the game.....Even if the game is offline only on steam it becomes kinda like an MMO....(I know steam has an offline but you still neeed to key in your credentials. no?)
Moreover if something happens to my computer, then I always have access to a permanent physical back up and I could re-install it if I like without wasting precious bandwidth (in my country we do happen to bandwith caps).
I usually download games from my work computer as my home connection isn't very consistent.....However for a game that is offline only, I have to run the back up, run steam, wait for it to update and approve access. It makes for a very tedious process and akin to that of accessing a bank account.
As a DRM service, steam is fantastic. However I don't particularly like a DRM system in the first place as it constricts my freedom to play a game...and that's precisely what its meant to do.
SirPrimalform: No, there is a difference. When I buy a game (in the traditional sense) I [i]buy[i/] the licence. When I 'buy' a game on Steam I subscribe to a service, hence the Steam Subscriber Agreement. If you want to discuss this further, feel free to PM me. I'll stop derailing the thread now.
<.<
PoSSeSSeDCoW: Subscription != rental.
Rental requires regular payments. Furthermore, you only have a subscription to use Steam. You have a license for the games that you have purchased on Steam.