from the GM website:
"INCREASE IN PRICES FOR LARGE SCALE SHIP DETAIL SETS.
For many years, we have maintained prices for our larger scale ship model detailing sets (1/200, 1/350, 1/400, and 1/500 scales) at very low levels compared to the costs of making them. This was done in order to attract new modelers to photo etched details for their projects. We intended to make our profits through higher volumes in sales.
Sadly, that plan no longer works. The popularity of these larger scale ship products is still relatively strong, but thanks to constantly increasing costs of metal and other factors, we have actually been losing money for the past two years. So in an effort to avoid being the latest in a growing line of hobby producers to go out of business, we're forced to raise the prices on these items. The smaller scale products are unaffected at this time and their prices will remain unchanged for now.
Our dedication to high quality is the same as it's ever been and we'll continue to provide first-rate service along with excellent products for serious ship modelers. We sincerely apologize for this development and hope you'll forgive us. With luck and God's blessing, we'll continue to be here to serve your needs for years to come. "
http://goldmm.com/new.htm