Gold Eclipsed By Dollar - Bloomberg

The reason why you might want to hold gold in a safe deposit box, is that even if there's a fire or water damage to the building, or a war, then your gold bars will remain intact and can be retrieved without having blackened or subjected to mould. They most certainly have not burned in a fire as paper would.

"Gold is just another risk asset,” said Michael Aronstein, the president of Marketfield Asset Management in New York, who predicted the 2008 slump that drove commodities down 66 percent in seven months and then the rebound in 2009. “It made you a lot of money if you took the risk eight or 10 years ago. A real safe haven would be a pile of high-denomination Swiss franc or dollar notes, stored in a safety deposit box."

If you held dollar notes in a safe deposit box since yr. 2000, you would have seen a 30% loss in purchasing power, which central banks have been printing an average of 12% more currency yoy.

Bloomberg