Red,
by definition you are right, in the long run prices of everything goes up, since more money is being 'produced' than how much more gold is being found and mined.
Since 1992, gold has been a better investment than anything else and most likely will continue.
I don't forcast any actual prices, but the trend will continue (forever)
I forcast annualized gold production to drop with time and probably in about 5 years or so, the drop will be more noticable. After autoclaves for refractory ores leading to a surge in gold mining and after the entrepenurial spirit of the Chinese(digging by hand) leading to a huge surge in gold production, gold production will drop pretty noticably. Uncertain, at best, political/social aspects will also take its hold.