[lightup88]

I agree that actually taking the contract is problematic, but I love the idea of using AdWords as market research and validation. Maybe not revolutionary, but I've never seen such a cool example (a market that essentially didn't exist).

[biot]

This is a technique that goes back decades. Put an ad in the classifieds section of newspapers advertising a product for $X plus $Y shipping and handling. Send a check to P.O. Box 12345, New York, NY and wait 6 - 8 weeks for delivery. If the number of orders weren't sufficient, return all the checks saying "Sorry, we sold out." If there are sufficient orders, the 6 - 8 weeks gives you enough lead time to procure the product from suppliers and fulfill the orders.