Actually, one of the things that I wanna point out here to all, since we are talking about hacked iTunes account, is the usage of jailbroken/unlocked iPhones/iTouches. The j/l broken phones/touches, if not secured by changing the default passwords (alpine), are the easiest targets to exploit by openSSH, to access your iTunes password.
I suspect many of these hacked accounts available for sale are/may be obtained via this process.
Good point.