The Souls™ games have always used some sort of illogical currency. Like what sort of denominations do souls come in? F... fives?
Blood I can sort of see. Like, "Gimme a bottle of blood for these Cheetos, bra." I can see that.
"Holy shit the new iPhone is like fourteen satchels of souls!" This? This is gibberish.
But... Insight. Madman's Knowledge? This has to be the greatest offender in the ideas-as-currency argument. How does one trade such an item?
Lawyer: "And how much did Senator Williams pay for your services?"
Sobbing Prostitute: "2... *sniff* ....jealousy."
Lawyer: "I rest my case."
And then he galloped away on a dream. Because why the fuck not, apparently.