Fast-food going self-service?

The fast-food chains including McDonald's, Burger King and Subway are field-testing machines that allow consumers to order and pay for their meals without any human contact (registration needed). Although no company has announced a systemwide launch, word on the street is that they are looking mighty hard. Growing use of self-service at the grocer and the gas pump has chains thinking more seriously of joining the do-it-yourself generation. It seems fast-food chains are always looking for temporary high-school workers. This is one way to reduce such challenges and overhead. Now, I'd like to see some bright marketing guru at corporate figure out a way to convince customers to cook their own burgers too. And while we are at it, how about bringing their own grills.