Quoted from PinMonk:Fact: Copper cost about the same as it did in 2011. There was a large dip in the price between 2011 and 2020, and now it's back at 2011 levels.
How much was Stern retail at release for 2011 Tron Legacy Pro ($5699)? Transformers ($5699)? There's not $100 of copper in a Stern machine, let alone $1000. With the price increase, we should be about $1000 more than those 2011 pro machines - and copper costs THE SAME as 2011.
https://www.macrotrends.net/1476/copper-prices-historical-chart-data