My company purchased the "Full Retail" version of Adobe CS5 on DVD for $595. The software was shipped quickly and it worked fine, but we had to phone Adobe for support and were informed that our license didn't qualify for support because it was the "Educational Version"! Further, it was licensed for resale in Asia, not here in the USA, and that it was already registered in Hong Kong!
How is that even possible unless they are selling black/grey market software...?