I use a lot of copper in my work and need to keep up with the prices. As everyone knows, copper costs have increased dramatically over the past few years.
I keep tabs on the current prices by going to a Futures Trading page. http://www.tfc-charts.w2d.com/chart/CP/W
This isn't the price that you and I will pay, but it does give some indication of where the current prices are headed. As of this date, copper prices have fallen. Whether they will go up again or come down further is a guessing game.
Hope this helps.