When I go a big box or electronic store, I see a dozen Windows machines. Maybe a Macbook or iMac here and there. I've never seen a Linux box on display, never mind the distro. I have Fedora at home, but stuck with XP at work. I see iPhone/iPads/Macbooks all over, so those must be popular too. I just don't see many linux distros out there, unless everyone has an environment which mimics Windows!
Yes, I can tell people how cool it is, but if they don't see it at stores or at work, I'm just a lone computer geek!