Vista versions offered on one DVD

Microsoft look set to ship all versions of their new operating system, Windows Vista, on a single DVD. This move will effectively help them reduce manufacturing costs by pressing only one DVD. The version unlocked on the DVD will depend on the license you purchased. This move also means Microsoft can sell an “upgrade” to a higher level without the need for your picking up yet another physical copy. Is this sheer brilliance on Microsoft’s part, or folly as hackers can just buy a single copy to crack all 6 levels inside? I personally think this won’t matter that much in developing and third world countries which are well known for piracy.