content: I think you underestimate the power of novelty and laziness. I'd never use one, but then again I'd never buy an ipod at a vending machine either, yet the machines exist and apparently turn a profit. I don't think you and I are the target audience. It's also worth considering that with the saved floor space and automation, they'd be able to sustain a business with significantly less sales. I could definitely see something like this working better in super dense population centers, like you'd see in hong kong or certain parts of japan. One things bugs me though... how do you get around the CO buildup from the car exhaust, and still secure the store?