I usually go the other way. I walk in, know exactly what I'm looking for and tell them so. I usually walk out of there with a frame stripped down. They start dropping the price. I tell them - "I don't want the wheels, the derailleurs, the brakes, this seat, etc" save for cranks and handlebar stem and seatpost and you can get a frame for about $30 bucks. Good times. Built 4 bikes this way.