"What will a gold chart look like after adding five years to it?
When projecting gold's potential price peak, there are many ways to measure it. Conservatively, gold reaching its inflation-adjusted 1980 high would have it topping around $2,400 an ounce. More radically, if the U.S. tried to cover its cumulative foreign trade deficit with its current gold holdings, gold would need to hit about $32,000/oz.
Let's take something more middle of the road, and apply the same trough-to-peak percentage advance gold underwent in the 1970s. (I think there's a greater than 50/50 chance it does more than that, given the precarious nature of the U.S. dollar.) Gold rose from $35 in 1970 to $850 in 1980, a factor of 24.28. Our price bottomed in 2001 at $255.95; multiply that by 24.28 and you get a gold price of $6,214 per ounce."
http://www.caseyresearch.com/editorial/3614?ppref=GLD192ED0810D