Maybe he noticed that these things are selling for $200-300 on eBay, and decided that he wasn't quite charitable enough to give away $1000+ worth of beta codes.
Couldn't blame him, but he should owe up to it, if that's what he decided to do. Then again, if I'm going to insist that he be honest, I guess I should be honest, too, so I'll come out and say that your blog completely sucks, is all just the same shit that's on Kotaku, and I was never going to read it anyways. Sorry, dude.