The higher end AMG benzes, for instance, have quite a lot of torque, not to mention the high strung Ferraris, Paganis and Lamborghinis that may frequent such hotels/clubs. Smashing up a Pagani Zonda Cinque would be something that would be quite ...well ...expensive. It is too easy for a valet who is used to parking Corvettes to think the same rules apply to some of the higher-strung exotics, and that underestimation that because he can handle a C6 Corvette he can handle a real super car, mixed with the young age of the valet (and the thrill of being behind the wheel of a Lamborgini Reventon or Bugatti Veyron), can easily lead to a crash that costs US$2 million Dollars (easily for any of those two cars).
Thus I wonder what insurance some of these hotels/clubs have, especially if the accident is due to the valet playing the fool.