I would like to take a moment to dispell the notion that MSDN keys sold on the forum are taken from stolen retail MSDN accounts that cost some hapless souls thousands upon thousands of dollars.

Please familiarize yourself with the Microsoft Bizspark program. Under the Bizspark program you just need to set up a shell company with a website and declare yourself to be some kind of startup that intends to be a Microsoft soutions provider or ISV. You then send an application to Microsoft's Bizspark program which requires a $100 application fee. If your application looks legit enough, Microsoft will admit your company into the Bizspark program which lasts 3 years.

This entitles you to 1 Bizspark admin account which in turn can invite up to 4 other sub-accounts.  The main account and sub accounts each are entitled to 3 years worth of the MSDN Ultimate subscription, plus $150 of monthly Azure credits. So basically for $100 and a litlle know-how you get 3 years worth of 5x MSDN Ultimate subscriptions easily worth $180K retail if purchased on a yearly basis. Most of if not all of the keys, invites and admin accounts (well, of course) sold on this forum are from the Bizspark program.

So nobody is losing thousands of dollars from the sale of these MSDN keys.