Prices of everything with metal as a component material is going up, not to mention energy costs involved in the manufacture and transportation of anything. I work in Architectural Metals and all of our sheet goods have had massive price increases in the past year. Stainless sheet has gone up almost double what it was a year ago with copper and aluminum not far behind. Add in freight fuel surcharges in the 7%-24% range and the picture gets even uglier.
Aaron