Enthusiasts might fancy upgrading their stock integrated heatspreader (IHS) with this one. However, no one will get to see this 'golden CPU' under the cooler, and it costs $32.99.
From the article... If money were truly no object you could use silver (429 W/m K) as a material - but it would be ludicrous to use diamond, even though it offers up to 2200 W/m K.
Silver is still a better way to go to reduce the gallium alloy (liquid metal) to fuse into the copper. Rocket cool should start offering an nickel plated copper IHS (at least as an option). Yep, this will increase the costs a bit but the price point shouldn't become so much higher for a relative cheap product as this copperIHS is.