gold is an amazing elemental substance, miraculous in many non-monetary ways! the best conductor, malleable beyond reason, reflective, able to be a sheet 1 atom thick. a bar of gold, you could eat it slowly over a lifetime of sushi and jagermeister consumption
Discussion
I don't trust gold purity enough to ingest it (especially london gold).
Plenty of other uses though. It's the simplest, most perfect metal.