You're clearly not the only one, but I've never seen an ad on Facebook for anything I was even remotely interested in. Mind you, that's mostly my fault, because I refuse to Like anything unless I can control the publicity that Like generates. I don't mind letting Facebook know I Like <X>, but I don't always want all my friends to know that.
It is interesting that Facebook is shooting itself in the foot by spamming on Likes and discouraging Liking, instead of using them to target user-friendly ads, which would br a virtuous cycle.
