The real problem is that it is a hassle to get any operating system up and running on a machine. Microsoft solved this problem by working with manufacturers
to make sure the windows runs on their product. Apple solved this problem by only allowing their operating system to be used on machines that they sell.
Until recently there had been no solution of this sort for Linux, so people who ran linux had to be brave enough souls to fuss with the machine
so that it acts right after the operating system has been installed. Part of the reason that linux is starting to be used more on the desktop is
because manufacturers are selling the machines with linux preinstalled. I am not so sure its about perceived value, its more likely about convenience.