i have taken one of those things apart "just because".
not sure where it came from, but i knew i would never use it, so i had a fun time.
as crowbait said, i found a little corrosion between a few pins and plugs between the layers, and i thought to myself, it was an overly complicated/costly way to make an item.
i wonder how many "atta boy's" the engineer that came up with this idea got...........