It’s decadence on demand in Los Angeles, where Beverly Hills Caviar recently introduced caviar vending machines that dispense gourmet gifts such as a pink mother-of-pearl spoon ($5), white-truffle salt ($40) and Imperial River beluga caviar ($500, 1 ounce). To make a tasty transaction, swipe your credit card at machines in the Burbank Town Center, Westfield Century City and Westfield Topanga shopping centers.