Gold is for your age-old pension, silver is to trade the ratio. Gold as a store of value against a dollar that is continuing to lose value (since 1913), and silver as a industrial commodity that is also considered a monetary unit. You can preserve purchasing power with gold and silver. You have the ability to increase purchasing power with silver.
You also fail to realize that bubbles have not formed with these particular commodities. Their respective bullmarkets are just beginning. Will bubbles eventually form and pop? Yes. But you have a hard time understanding that the Federal Reserve Note note is the biggest bubble of them all. Therefore, those who associate themselves with it (besides using them to buy food or pay bills) and try to preserve their wealth in derivatives that are based off of the Federal Reserve Note (401k, Bonds, Mutual Funds, traditional savings account, etc) stand to lose the most when the dollar bubble pops. This is because the Federal Reserve Note has no value, and thus all derivatives of the Federal Reserve Note also have no value.