The Gold to Go machine will dispense gold coins and bars ranging from 1-250 grams. Prices are adjusted on a minute by minute basis to reflect current market prices, and then marked up by about 5%. By my calculations one gram should currently run about $50. A gram isn't very big though (finger nail size) so you'll probably want to go with a full ounce, priced at about $1500.
I think this is a pretty sweet concept. Las Vegas has some great money blowing options for those lucky enough to leave the casino ahead, but this one might actually give you a return on your investment.

For more information check out Gold to Go.