Over in the DesktopLinux forums, people have been talking about why, if Linux is so darned great, don't people give up Windows and move to it.

The usual suspects show up. There aren't enough applications. The right application isn't available. You still have to use the command line for some things. Some equipment doesn't have drivers. There's some truth to those, and some nonsense.

The real reason people don't use Linux on their desktops, though, is that it's not already there. They stick with what they know. It's really that simple.