I wanted to write 5 reasons to dump windows over linux, but soon I was so overwhelmed by rush of reasons that I could find, that I ended up making a list of 50 reasons.

So here it goes:

Windows is Expensive.
Windows crashes more often than Linux ever will. (Windows BSOD) (Linux Kernel Panic).
Windows Task manager is not half as cool as Linux Htop.
Windows Notepad is not 1/1000th as cool as linux vi.
Microsoft office for windows is not free. Openoffice, which was originally developed for *nix platform is free on all platforms that it supports.
Windows Terminal vs Linux Terminal. No comments, see for yourself what you can do.
Windows is not friendly towards linux installations on a separate partition.

Full List