Originally Posted by Wilcoxson, David L.
A 4SR44 lasts for several hundred rolls and the <$10 spare will take literally 2cc of space in your bag. The camera gives you maybe 50 rolls of warning before it malfunctions. To avoid that, frankly-zero, level of inconvenience, you end up with unreliable mechanical shutters that need servicing to keep good time, not to mention coupled metering.
Batteries are not any form of drawback. Hell of a lot easier to deal with than keeping your beast fed with film.