Following the spending trends of the wealthy is big business, obviously, and it seems one of the places all their money is going is into filling up their huge homes with loads of pricey decor and expensive gadgets. The rich are looking to make their environments beautiful and comfortable and their lifestyles convenient, and they've got the money to do it right. Hand-embroidered sheets from Leron, the Grand Palais Chateau 180 Stove from La Cornue, and a $2.5 million dollar "Bat Cave" vault are just a few of the things many of the super rich feel they simply must have. What's on your list of luxury "must haves?"