Yes, it is dumb that airports, stores, and hospitals run very outdated software, but imagine how hard it would be to upgrade all those machines, especially considering the programs that might not work well with never operating systems and the fact that staff would have to be trained all over again. Not to mention, most of these businesses and services can't afford any downtime and need to make sure that everything is compatible (so, update one PC, you have to update all of them). In theory, I am still a fan of updated systems, but then again, I have a 10 year old XP installation at home, which I've been preparing to reinstall for a year or so (don't really use that PC, but still)