DENVER ( TheStreet) -- Gold prices at $1,300 mean big profits for gold miners. At the Denver Gold Forum, the mood is bubbly and optimistic. The CEOs of the leading gold and silver companies expect prices to move higher. Long-term targets are ranging anywhere from $1,500 to $5,000 for gold and $30 for silver. Cash costs range anywhere from $300 to $850 per ounce of gold, leaving lots of room for big profit margins as gold heads to $1,300 an ounce. I asked each CEO what $1,300 gold prices meant for his company.