Yes? How does that making selling the used thing any different? Especially if we're talking about boxed copies, why is it so different to a car for example?

Does this affect the retail version? Or is the DRM only for the copies bought on steam?

I only really buy indie games and games with great discounts on steam. Everything else I buy retail.

It means that Civilization V is tied to Steam so if you buy it retail, it'll install Steam if you didn't have prior.

The great thing about civ 4 was that it didn't have DRM.

But steam is great system so it wont stop me from getting the game.

Steamworks is win. You can buy the retail version and once it's linked to your account, be able to download it any time in the future. It's the best of both retail and DD.

Though I suppose it'd suck if I ever wind up in a situation without a reliable internet connection.

Edit:

Though I'd assume you'd still be able to play the game with the disc in even when offline?  Then Steamworks would simply be an additional bonus, letting you redownload the game should you have issues with the disc.

Steamworks is a PoS DRM that tells you when you are allowed to play your game (or at least they have the power to). I should know - after installing a game that took over an hour because Valve's program malfunctioned, I had to wait another 3 hours because it forced me to download the patch. Steam doesn't let you play the game until it's satisfied that you have everything downloaded. I feel sorry for the people who bought Supreme Commander 2. At least Securom leaves you alone after you activate it.

The second point here is that Valve just bought exclusivity, preventing the retail customers who don't want to get involve with online distrubution from buying it. How would PS3 owners feel if Microsoft prevented Final Fantasy XIII or whatever other game they liked from being distributed on the PS3? Oh well, you do what you have to do, I guess. Right or wrong, I know what I'm going to do.

As long as it doesn't bug me about my crappy internet connection once it's fully installed, it'll be fine.

Does steam require you to be online to play... single player games?