There has to be an error somewhere on a couple registrars. Trying through 101Domain adding a domain to the cart results in a total of $12,025.16 USD. I can get it slightly cheaper at Yay.com for $10,209.09.
Different registrars set different prices. .com domains cost different amounts across different registrars too. It's not a mistake, and if price factors into your determination of which registrar to use, then that totally makes sense.
Right - so you've just built this to give bdirty scammers another way with which to rip everybody off. Thanks for that. Lucky "Do no evil" isn't written on the wall there anymore...