Today I have two camera houses, An old manual one (MX), and a "facetop computer" (Z-1). They have complementary features, but in a tight spot I can do with any one of them. The Z-1 advantages are e.g. autofocus, advanced metering and motorised film transport. The MX, however, won't stop working when the battery goes dead, and is easy to operate in extreme cold or in darkness.