Yes it is good to set up an computer the way you want to. To hook up your command line mail client with your well tended google account. To find what your needs are and tune your Openbox config to it.
Yes it is a hobby – as good as any other hobby – to find that one perfect monospaced font, that will make your life easier. To write this set of scripts that will, in the long run, possibly save you time and make the computer feel like an extension of yourself. Like something you contributed to. Something you controlle.
But there’s a time when one has to say:
“And now I’m just going to use that stuff”