The point is not that there's gold in the boards, there's been gold mining in old computing equipment forever: We sold an IBM 370 to a recycler and when he saw how many CPU unit's we'd salvaged as souvenirs he dropped his quote massively (this was the generation which had a grid of I think 8x8 chips embedded in a huge aluminium heatsink which was backed by the water cooling. So it looked like a chip blown up and on steroids, but was a carrier)

The point is that they've found a way to use Cheese producing byproduct to make a n efficient filter returning 50:1 on the input costs.

Whey does make other things too. Like .. whey based cheeses. But I doubt the return is as good as this!

Oh great! Another source of idiots buying old boards and chips on eBay denying their use and resurrection by actual retro collectors. Destroying history.

I had to bid against them already making my Intel 4004 based project.

Depressing