"Elvis is still the king of the crypt"

Some celebrities make a lot of money during their careers but others stand to make even more money after they die. Elvis has been one that after his death, an empire was created. According to the article Elvis made $45 million in 2005. This puts him as the top dead celebrity in making money for 2005. We all see Elvis souvenirs, his look-a-likes and even his CD's still selling.

I was just wondering if any one would be able to predict the new big money maker for next year that is dead. The article mentions that Johnny Cash could be a huge money maker because of his new movie coming out in November. What do you all think about the concept of making money of dead people? It seems weird to me that there is this much money to be made of a dead person.