designing a battery operated device without a regulator

From: John Smith (
Date: 01/14/04

Date: 14 Jan 2004 08:19:55 -0800

What are some issues associated with using vs. not using a regulator
when designing a consumer electronic device that runs off 2x1.5v

Obviously cost is the issue here. Do most ultra-cheap electronic
devices intended to run off replaceable batteries have regulators?
What drives the decision?