Shorter Megan McArdle:
Back in my day we used plain loose leaf with "100 smackers" written on it for cash adn that was good enough. Damn kids today, with their funny money and not wanting of counterfeiters to become rich and all...
Seriously, I like the somber gravity of the old plain green bills, too. I -- like most sentient beings -- can differentiate from nostalgia and practicality, though. Alas, Megan cannot. No, she doesn't like green money because that's all she's ever known. No, she likes green money because it's JUST BETTER.
I'm not linking to her and you can't fucking make me.