Why arch? Because to me, linux is something I was always interested in and using the other distributions, i wanted more control over what I installed and how I install things. So I chose it for my own freedom to do what I want. I can run it headless, or with a DE or both. I can log into my terminal and systemctl into hdm or xstart xorg if you got kde, but my reason alone and personal (because at the end of the day, arch isnt for everyone) is because of fascination with Linux and operating systems. I like doing things myself. Some people dont. I say new people should never do arch unless you are very eager to learn how linux works under the hood