I love learning about things I would never come across in everyday life, like how a packing machine works and the problems no one would ever think to think of like air pressure and altitudes. Then also the restrictions put in place and how to come up with a creative solution to a problem. This is the kind of stuff I live for.
The air pressure certainly has an effect. I live in an only somewhat-high-altitude city (Calgary) and most of the chip bags you see are puffed up like balloons.
