Good for you.
But for me, personally, I went with the lazy route. I just downloaded the songs I like and saved them to a USB stick, plugged it into my speakers and called it a day.
Honestly, I don't really know much about audio quality other than higher kbps = higher quality (I might be wrong on that though).
My library consists of ~120 .m4a files, 128kbps, most (if not all) downloaded from YouTube.