They could buy all the cars and oversized Christmas tree ornaments they wanted, unless they happened to run up an unpayable credit card bill in the process.
And as a great statistician and predictor and foreteller, or prophet, more literarily, I can picture a future that will be doomed to me in a billing cycle of my credit card.
His company is testing, with KeyBank, a system that allows a customer to punch his PIN number into a phone before making a purchase, in effect turning the phone into a credit card.