The price of gold hovers just below its all-time high, capturing the attention of investors as it again tests record levels.The idea of investing in gold can elicit a wide range of responses from people, from strong vitriol to deep praise. You have the gold bugs on one end, whose portfolios are dominated by the yellow metal, and on the other end you have investing purists, who claim because it has no earnings, it has no place in their portfolio. As with most things in life and investing, the truth lies some ...