I've never had a clear understanding on investing in gold, except that there are complications I couldn't live with, so I want no part of it.
Where should it be stored? At home where it can be stolen? You could purchase a bolt-down safe, increase your homeowner's insurance (if they allow that) - but then "they" know it's there. You'd need a high dollar security system - all of which eats away substantially at your investment.
You could store it in a safe deposit box. If a box costs $100 a month, that's $1200 a year - quite a dent in your investment, if the only reason you have the box is to store the gold.
And it's not like you can take out a chunk of gold from your stash and go buy something with it. What store would accept it, or know the value of the gold you brought in? For the gold to be useful to you, you would need to redeem it for cash somewhere, but if the motive is to have gold on hand in case cash becomes worthless, then what good would that do?
And gold may go down in value. In 2013, it's value went down almost 30%.
I don't find much positive about investing in gold on the
Commodity Futures Trading Commission, which states on their website, "Gold is no safe investment."