Sacrifice Design for Ink

In the age of "going green" and making a serious effort on the part of designers to save paper and use recycled materials, it's curious that the design community hasn't given much thought to conserving ink as well. Ecofont is a free font for Macs and PCs that incorporates little white circles within the lines of the letters as the font size is increased, in an effort to help ink cartridges last longer. The Ecofont is based on the Vera Sans, an Open Source letter. The company estimates that Ecofont uses up to 20% less ink than standard fonts off your computer. It's absolutely free, but involved quite the elaborate exploration that led up to its creation: there was extensive testing of all kinds of shapes (the best results were achieved using small circles) to find out how much of a letter could be removed while maintaining readability. Still, I'm not convinced that designers, for which typefaces are sacred territory, will be willing to compromise their designs to save toner.