I checked again today at lunch time with the bank if they had new $100 bills, and they did. The teller emerged from the vault with a crisp new stack of one hundred $100 bills (so : $10,000; enough to choke a horse?) and peeled off two for me. The new bills have a blue appearance and is not radically different from the old – but it does have some nice touches of color with the blue and the orange.