Cuz when you think about it, a person who is willing to give up sex in exchange for pieces of paper and metal that (only by shared acceptance) represent some sort of abstract value...
Without diving too deeply into the history of currency, I'd like to give you just a general understanding...
Back in the day, if you wanted some cloth, you gave a person who had cloth some milk, and they shared you their cloth.
If you wanted some cloth, but the cloth guy didnt want milk (perhaps he already had a cow) but he wanted some beads, and the bead guy wanted some milk... so you got some beads from the bead guy (by giving him milk) and then took the beads to the cloth guy...
But say the bead guy had 6 cows (and as such, offering him milk is an insult) so you would need to find someone who has papyrus and wanted milk... and so on and so forth...
Enentually it got to the point where people would use intermediaries...
"I O U six shiney black beads" rather than actually having to always carry six black beads around... And then, eventually, people becan to accept a more common exchange rate... Everyone knew that six black beads gets you a full glass of milk... So if you have something worth twelve black beads, you know you can get enough milk for you and your spouse for dinner...
blah blah blah... we have money... Which, when you think of it is almost completely valueless EXCEPT everyone accepts common barters for the value of this worthless piece of paper...
I know that roughly 150 abstractly dictated values of canadian earth monies can be exchanged for bottle of pop...
Now we get to the fun part...
Is Neal a whore (shut up Shannon... Jenn... Sharon... Justin... Morgan... Everyone else... jeez... who asked you)
Well... I do stupid things... Not for money, but for an equally abstract system of valuation... Cool points...
What are cool points? they're points you accumulate by completing tasks (based on the complexity of the task, or the 'pain or grossout' factor)
As I've learned over the years... Licking the sweaty armpit of a guy = 142 cool points...
Peeing in a particularly akward public place 11 cool points...
and... now to add last nights aquisition... squirting a lemon in your eye (whilst mostly sober)
500! Cool points!
Woot!