>You can't print without a printer and ink You can with a laser printer and toner. Inkjet printers are still hugely profitable though. >you can't shave witho

>You can't print without a printer and ink You can with a laser printer and toner. Inkjet printers are still hugely profitable though. >you can't shave without razor blades You can buy a lifetime's supply of safety razor blades for the price of a modern kit. Razors are still hugely profitable.