It almost doesn't even matter for Google products: I've had more Google products die due to lack of software support rather than any sort of hardware issue...
I've seen cheaper drinks at ski field cafes... It makes sense for them to be pricey there, since they have to bring it up a mountain, but what's this places excuse...?
The machines would wear out faster with more usage, so using them longer each day wouldn't help with that, but doing two shifts per day would increase productivity per machine than one shift per day. Which would also help pay off any loans for the machinery faster.
Ok. 3. 2. 1.