[ambiguity]

Amazon should put an upper bound on the maximum price a product can be. Can credit card companies even process a transaction in the tens of millions of dollars?

[caf]

I remember hearing about someone buying a multi-million dollar artwork with their platinum amex once, so it would seem so.

[joshu]

Platinum Amex I doubt. Maybe with a Centurion card.

[patrickgzill]

The so-called "Black Amex" card has been used to purchase a ~$30 million aircraft, according to American Express.

[madh]

Mark Cuban bought a Gulfstream V over the internet with his American Express card.

[gcb]

Only yahoo to create basement dweller millionaires

[smackfu]

So they make it $10k, and the post is about the $10k book instead.