I never listen to Youtube for regular music listening, because the quality is crap, and if you make a playlist from the same uploader for consistency, it sometimes won't let you because it recognizes it's a full album. And the stuff I listen to, it's often difficult to find the full album.
I only use Youtube to initially check out the music, then if I like it, I get the real thing. Youtube is great for that.
Never been in a situation where I've been away from my computer and wanted to listen to an album though. If I'm that far from my computer, I bring the music collection with me on my external.