Printer ink is now the most expensive fluid that a civilian can purchase without a special permit. It’s colored water that costs $10k/gallon, which means that you print out your grocery lists with liquid that costs more than the semen of a Kentucky Derby-winning stallion.
Depending on where you live, buying blood isn’t something your average consumer can do.
Even if you can, things like horse show/racing and prize bull semen can go for tens of thousands of dollars a gram, or more.
I read this, but it could be wrong
https://pluralistic.net/2025/02/26/ursula-franklin/