Well recently I revised my opinion on bought likes. I think that buying may be good for you when two conditions are met: when it's cheap and you're just starting with your fb fanpage. It's because experience taught me that people are willing to like a page more often when they see others did that as well. And I agree that getting those next 106 likes, which are genuine, are going to be hell and last forever, but it's still going to be easier, than when you start with nothing.