That sandwich would probably be even more delicious and a hell of a lot cheaper without the gold.
Seriously, what is it with people eating gold? I get that status symbols are a thing, but the line really should be drawn at eating expensive, indigestible and flavourless things just because they're expensive. It's not like there doesn't exist expensive things that are actually quite tasty. Hell, caviar is quite nice, and that stuff costs stupid amounts of money.