Sorry if this has been asked before but I really want to buy a Philips Lumea and want to take advantage of all the deals at the moment... but what’s the difference between the advanced and the prestige?! Is it just that the prestige is cordless?? Looks like I could get the prestige for £268 at the moment but I could get the advanced for £200.... if the only real difference is the cord then I’d rather pay £68 less for the advanced if they perform the same otherwise. Does anyone know?