And if the below trend continues - costs on manuf. for all the amps will go up:
"July Copper Hits Contract High
May 03, 2007 3:09 PM EDT
NEW YORK - Copper futures hit contract highs in New York on Thursday, boosted by ongoing warehouse inventory drawdowns and labor unrest in Peru.
"It was technically driven, and then there was (fundamental) support," said Catherine Virga, base metals analyst with CPM Group.
The most active July copper contract settled up 8.20 cents at $3.7265 per pound on the New York Mercantile Exchange."