Now if you’re trying to own one of the world’s best man caves, you need to make sure you have the best beer stocked up at your bar. Beer will make or break your bar. Poor nasty beer will make your friends never want to come back. So it stinks, but you need to coin up a few extra bucks for a great bar. If you want to have one of the rarest bars on planet Earth, you need to own the world’s oldest beer.