How Much For That Sandwich and Chips?

Like Panera Bread but think it's a little out of your price range? If you're in St. Louis, you may be in luck. The ex-CEO of the company is starting a new restaurant exactly like his famed franchise restaurant, except in one critical manner -- customers can pay what they want for their food, even nothing.

The pay what you want model has worked well for the record industry groups that have tried it, but the business model may prove a little harder to sustain when the product actually requires a reasonable investment per item. What do you guys think? Would you actually pay a fair price for food without a price tag?

[Image courtesy of ohdearbarb's Flickr Stream.]