For those who have not mastered the vast complexities of the Google machine:
http://www.inda-gro.com/
http://www.youtube.com/watch?v=UCR7vJAtiNA
http://www.youtube.com/watch?v=Y1YO-uy-aqE
http://www.youtube.com/watch?v=_O4BVT64H_w...
Overall I agree with your premise. But I doubt my medicine knows an inexpensive timer from an atomic clock as long as they both turn on and off at the same time.