If you think that having gold bullion may help in any case since they have been known to increase the wealth in some ways. Then you should need to know about the company that is selling and storing them on their vault for safe keeping like United States Gold Bureau, they are claiming that they should keep your gold until the time that you will need it.
Personally, I don’t care about it since I don’t intend but since I don’t believe that having gold would increase our wealth in some was. Maybe it would increase our wealth but once that you have sold it then that is it. This is the reason why I never like them to recommend. I would recommend investing on your knowledge since you can always cash on your knowledge easier that any the things.