Silver vs Fiat Currency?

Lately I have been putting as much money as I can into silver. Simply put, I don't trust the US gov't to make good on their debts or keep their fiat dollar valuable. I believe the only way to make it out of this nightmarish depression on the horizon is to invest in scarce resources like gold, silver, crude, ect. just to have some holdings that can't be devalued by the printing press. Historically we have seen real resources like those as benchmarks for trade, currency by its definition must be scarce in order to be valuable.

[Silver price and ratio for last 600 years]

Here is an interesting chart featuring silver's value over a 600 year period, as well as the silver/gold price ratio throughout that time.  If you notice the first few hundred years this ratio hovered around 15:1, yet now the ratio seems to completely unpredictable and is actually at about 38:1 at the moment.  Going back to the chart, it is easy to see that these fluctuations began in the early 1900's when States around the world began to outlaw precious metals as currency in favor of their fiat money.

So could we see silver pull back down to a ratio closer to 15:1? If so, the price per oz. of silver could easily rise to $100+ and that is at current inflationary levels.  If QE3, 4, 5 comes down the pipes we could easily see $300 silver as some other blogs and websites have reported.

Why not gold?
Obviously silver will see some rises, but why not just stick with gold? Well, as you saw above the ratio seems to be off for arbitrary reasons, meaning the market should correct silver to it's proper ratio with gold.  This means that silver is more undervalued than an Apple stock in 1980.  But the biggest thing for me is that, seeing as I am a 19 year old college student, I don't have much money.  Yet with my shit job and expensive habits I was still able to put enough aside to acquire nearly 19oz of fine silver.  I bought this when spot was hovering at $38, so perhaps I will make enough to buy a pony. You guys tell me.