Just because money bags monaco spent a ridiculous fee, as they tired to buy their way to the top, it shouldn't mean that his value should have automatically gone up. The fact of the matter is though, in a market where a 19 year old left back goes for around £30m, the star of the World Cup, whose marketable and young, is bound to go for something a fair bit higher. In reality both clubs over paid for both players but time will tell, which one pays off more from both a footballing and commercial point of view. Unless you're Sergio Ramos, most defenders just aren't half as marketable as an attacker.