Decadence.

Chocolate. I picture a chocolate cake. Rich. - Because isn't that what this word is usually used to describe? Chocolate and cake? That and parties, with crystal chandeliers (which really, anyone can get pretty cheap nowadays) in a big white marble ballroom, with people in tuxedos and long white gowns, with their hair up, sporting diamonds and drinking champaign, at a party... - that's serving rich dark chocolate cake.