Most Expensive Dress Shirt

See this shirt? It is Egyptian cotton with gold and diamond buttons. This is the most expensive shirt in the world, coming in at $40,000. So I wonder what swinging dick would actually spend 40k on this Eton Diamond shirt? Is that worth it, what about all the charities you could donate that money too and save lives? This is the kind of shirt that PETA should be dumping red paint on...