In a recent article, I discussed a few reasons to be bullish on Silver Wheaton (NYSE:SLW) due to its position as the world's largest silver broker. In this article, I would like to look at a few reasons to be bullish on silver itself. Many investors consider silver to be a precious metal, much like gold, and as long-time readers of my articles are well aware, I have been bullish on gold for quite some time. However, I believe that an even stronger investment case can be made for silver than for gold. Historically, silver has been valued at a certain proportion of gold's price. This is known as the gold-silver ratio. As fellow Seeking Alpha contributor Plan B Economics points out, since 1687, it has taken an average of 27.28 ounces of silver to purchase one ounce of gold. At the time of writing, gold trades for $1195.40 per ounce. Therefore, if silver were to simply trade at its average price over the past 328 years, then silver should be trading at $43.82 per ounce. That is approximately 170.5% over today's price of $16.20 per ounce. Read more