Okay. Some very interesting and informative posts. But please let me clarify, buying gold is not an investment. Gold is simply a hedge against inflation.
Let me explain. In the late 1870's, one ounce of gold was worth approximately $20. With that twenty dollars, one could purchase a new Colt single-action revolver. One could also purchase a man's tailor-made suit for twenty dollars.
Currently, one ounce of gold is worth approximately $1800. A Colt single-action revolver is currently going for MSRP $1799.00. Likewise, a man's tailor-made suit is also going for around the same price.
If you had kept $20 in paper currency in 1870, it certainly wouldn't be worth $1800 today. Paper money doesn't keep up with inflation. So, gold is not really considered an investment. It's merely just a hedge against inflation.
Silver is pretty much the same. For example, one silver dollar (one ounce) in 1873 would be the equivalent of about $23-$24 today. One ounce of silver today is going for around nineteen bucks. An investment? Not really, but a very viable hedge against inflation.