I just feel like there's something to be said for completeness. The best artists, I hope, choose the inclusion and order of their songs for a reason, so to get the full experience I think it's nice to have them all. Maybe I'll change my mind when I start running out of computer space.

Mm, there've been a couple that made me go "I ship that/want fic!" but none that got any kind of fandom, even a small one, out of it, so you're probably right.

Limited success, then!