As an example to further my point, where I am located a lot of the government agencies still require IE6 because of some of the outdated intranets that they are running. Therefore, if I were creating a website for a government organization I would most certainly need to support IE6 in some fashion.
Remember that ‘supporting IE6’ does NOT, by any means, mean pixel perfect – just a functional website. Will they get rounded corners? No. Will they get neat CSS3 things? No. Etc etc. They just need functionality.