Windows has everything...

That was the argument used by my grandfather when I told him to reboot...into Archlinux if he wanted to work efficiently. "What doesn't Linux have?" was my natural response. "Linux doesn't have my documents, Linux doesn't have the software for my Kodak digital camera, and for my pulse monitoring device" I admit I had to concede the last point. Try explaining the difference between storing/accessing data and running a program : in both cases its just a click on an icon. So Linux doesn't have his data... It does, only different icons/software that starts. Try explaining that digital cameras act as a normal flash drive in case you can't access it otherwise. The fact that a great number of cameras can be accessed using one library (hi gphoto2/digikam, bravo the devs); library that is in no way connected to the manufacturers. "A non Kodak app can operate a Kodak camera? Yeah right" was the response, slightly reformulated. I figured I was arguing against a wall, so I left him waiting for Firefox to start (takes about 3 minutes, literally : a process locks everything up when anything related to networking is started. Why don't I kill it? As Administrator I don't have enough rights...go figure)
Morale of the story? Until the idea that branded hardware works only with software of the same brand is overcome, GNU/Linux has little chance of conquering the general public. But even though I am a bit of a fanboy, I do admit that there are devices that just won't work...maybe ever.