I see these all the time at computer shows, they'll sell you the SW with an old stick of ram (128MB etc..) or HDD (like one of those has a 20GB drive) or similar so they can sell you the OEM SW and comply with the licensing agreements.
You can get some cheap software that way but I'm sure a lot of it isn't valid (I love it how they say "sealed" - you can still get the license code off of the case (if it has one) and sell the disc.
This is also why I love corporate licensing of Windows.
