Then I started mass buying them in hoping to spam and spam and spam. I had hundreds and hundreds of keys muted and banned (note: I don't sell those). it all started when I had a small shop and was spamming Diablo 2 (at the time it really worked, in 2003).
I caught up with the man who runs this business endeavor, Frank Lau, and of course I had a few questions. Small sales add up though: if he sells them all he stands to make at least $20,000. $5 is not a bad price for games that regularly still go for more at brick-and-mortar stores. That price includes a key for Diablo 2 and Lord of Destruction. I read the story on digg: someone accumulated over 4,000 Diablo 2 keys and is now selling them for $5 a throw.