And the userbase exists due solely to the fact that Windows is pre installed on virtually every brand name boxed PC sold. Besides, I don't want Linux to replace Windows, as I've stated time and time again in this thread I make a living repairing the numerous issues surrounding infected Windows machines with registry issues, if everyone switched to Linux I'd have to get a second job! I just want to get rid of my Windows gaming machine and free up desk space.
I'd get rid of the Linux box, but it's the little things I can do under Linux that I can't do under Windows that make life so much easier, and I don't have the infection issues nor do I need to reboot to apply updates or have my boot process cycle five times while updates are applied.
Dell (and others) tried selling PCs with Linux, and it was a failure. Their support costs went up and customers complained. People who want Linux just wiped the drive and install it.
There's just not any meaningful demand. I'm not big on the OS, but I'm not against....what I am is realistic. It's been 3 decades and I've heard this argument since the late 90s. In that time, MS has lost less than 10% of the desktops.