The David Beckham Effect Spotted in the Wild
"Interesting how one contextual advertising program can make such an impact. And no, I am not going to admit how many domain names I have registered because I thought it would be perfect for a content site with AdSense :)"
So we have adsense impacting the domain market, not too much of a leap of faith to connect it to sandbox too, imho.
From the increasingly excellent jensense.com