Well, Hell, here's another one.
Producing bottled water is "labor-intensive," meaning payroll costs (wages, benefits, employer share of taxes and social security), all the way through the process, from the manufacture of the plastic bottles to the advertising to the delivery to the retail establishment, and to the payroll costs of the seller involved.
I think one guy, working half a day, can produce and sack 4,000 pounds of ice.