Absolutely correct.
I could easily split the job into two shifts with almost exclusive part time employees whom I wouldnt have to pay overtime (huge expense, ~230k per year), health insurance (huge expense, ~90k a year), dental and a matching 401k (medium expense, ~35k per year) to.
Instead I employ people who want hours, who want work and enjoy the over-sized checks every week.
Its somewhat mutually beneficial in that as the employer I know the morale of my crew is always high and dedicated. Expense-wise, it costs me more to do it this way but I would never consider the alternative. It may be a better for the bottom line, but then you'll have higher turnover, more scrap, less dedication and oodles of time dedicated to training and re-training.