Gormoth1: Yes while not needing the CD is good, the limited installs is not. Especially when its limited to 3 and there is no way of "revoking" a used install (which could be as easily achieved as by performing a verification check).
With all due respect, once you buy a single copy of the game, under any circumstances, you should NOT be allowed to install it on more than one or two computers. And while I might understand your concern regarding mis-indentification errors, such as the fact that you will waste 1 of your 3 tries accidently, or even regarding the fact that this is not future proofing of the game at all, since when you'll upgrade your PC you will still have to waste another install of your allowed 3, you still need to remember that this is not a free-pass for you to just buy and install on anything you wish, including your neighbours', your cousins', and your pet dog Timmy's PC. It's a piece of software that people worked very hard for.
And like I said, while I do agree that this is not really future proofing, you still need to remember that the game WILL be eventually cracked, be it a week, a month or even a year after release. The developers only aim is to protect their IP from casual downloaders, what you might call Zero-Day Piracy, in which fans simply cannot wait for the game to get to the stores and want to play it RIGHT NOW, as soon as, or even prior to the release. Stardock solved this by providing their SD central downloading service, but this work model doesn't work for each and every game, I'm afraid, for the same reasons I explained on my previous post.
For the millionth time, I do agree that DRM sucks, and I don't want to jump through hoops in order to play the game I legally purchased just as well as you do, but there aren't that many alternatives to protecting yourself from being robbed of your well-deserved money, if you're a developer. This is not a halfway bad model as you picture it, and unless you pirate your games, this is actually a better alternatives than many other forms of DRM.