Cheap keys

[citizenbob]

Gotta desktop with digitalriver 7 ultimate sp1, and want to activate it. What's the cheapest way to get a key that won't end up blacklisted(like from a vendor). Cheap one off amazon, google shopping, and ebay that are digital are almost always blacklisted keys, or soon will be, and commonly come from botnets..

I know digitalriver sales keys to people with college email addresses, and it's legit retail keys(they are paid by MS for packing and distro), but I don't think they do ultimate, also there are tricks with anytime upgades, but I doubt they still work..