Spam

My spam is always the same. I get about 50 a day for viagra, cialis, nude pics of Brittney Spears, hot stock tips and penis extenders. There is one recurring spam I get that makes no sense to me. Replica watches. Am I the only one receiving these? Replica watches. What the hell is up with that? Of all the products on earth how did replica watches become the king of spam. Can it possibly work? Are people really logging on and buying watches from these invisible people? Can someone please explain this to me. I begging for an answer.