I remember reading about how Kodak tried to block digital cameras (even its own) so as not to compromise their own film business, only to be caught unprepared later on when the digital camera revolution came anyway and then took massive losses.
It's funny how they build the first.
Definitely true. It's kind of like any physically intensive job that you can only keep up for so long before your body gets messed up to the point where you have to quit early. That "big money" isn't forever, it has to be saved up while it's earned for retirement later, which might be sooner rather than later due to physical disability.
Plus there's the lack of holidays, and in fact crazier work hours with fewer breaks and no days off during the holidays, because that's when there's the most shipping going on. Much harder than coding or other tech work in air conditioned rooms and breaks during holidays, etc.