Newsflash: It's Expensive Being Rich
I can't believe I'm about to say this: Oh, those poor rich people.
But it's kinda true, if you're in a generous and sympathetic mood and willing to look at the numbers. The more money you have the more money you need, it's as simple as that. The luxury market and the prices of luxury goods is rising at about 3 times that of the standard market and of standard goods. Part of the reason for this is the fact that although there's more and more money floating around in the world there is still a finite amount of goods to be purchased with that money, and for people with money to spend status symbols become almost exclusively defined by their price: the higher the better.
It's a LOT more complicated than that, but it really can all be summed up in the simple phrase "it's expensive being rich!"