I have been collecting Copper cookware for quite awhile now. The first pieces that I bought were the 3 All Clad Copper in 8 Qt, 3 Qt and 2 Qt sauce pans with lids back in the late 90's at a tony Cookware shop on Lake Blvd in Pasadena on sale for $300. The next ones were the 3 Bourgeat pans (SS interiors) a 10 inch French fry, a 4 Qt & 2.75 QT Flared Saute wt Lids from an estate auction in Wyoming for $100.00.
The rest have been acquired over time by dumpster diving at Thrift stores here in town. They include a Revere Signature 1801 Crepe Pan, a 10 inch Magic Copper Chef triply wt Stainless interior (a precursor to All Clad Copper pans), A "Made in France" 10 inch fry pan tin interior probably Mauviel, a 1 Qt Sauce tinned pan "made in France" for "Crate & Barrel" probably by Mauviel. An unmarked 3.5 Qt triply wt SS Copper Casserole and because it is not marked "made in" is probably made in the US by? A 3.5 Qt Sauce hand hammered tinned sauce pan marked "made in France" for "Crate & Barrel" probably by Bourgeat (it weighs 5.5 lbs). Not shown is a 10 inch Au Graitian Tinned interior pan that is marked "made in France" and is probably Mauviel and a Dehellerin 14 inch tinned Au Graitian that needs retinning. None of the Thrift store pans cost over $10. Some of them have needed quite a bit of elbow grease to shine..
The heat conduction using Copper pans is sublime...with a gentle heat you don't even know it is cooking and then it is done.