Speaking to Robert Mitchell of Computerworld, HP (NYSE: HPQ) marketing manager Thom Brown attempts to explain why printer ink is so expensive. Bottom-line: Ink technology is expensive to develop, and consumers pay for reliability and quality. What I found interesting though, is the continued refusal of ink manufacturers to disclose the volume of ink in each cartridge. Brown puts it this way though: "Each system has a different way it uses ink or the drop size is different. If you looked strictly at volume you wouldn't see those differences and it would be confusing to the customers." I have not used inkjet printers for a while; I would love to hear your thoughts on this explanation. Article