Just setting the printer default to “draft” quality would save consumers hundreds of dollars a year. Yet few consumers do. Though many companies still sell cheaper ink refills, refills account for only 10 to 15 percent of the market. That means that 90 percent of printing is still done using ink that, according to the PC World analysis, costs $4,731 per gallon. You might as well fill your ink cartridges with 1985 vintage Krug champagne.