They collect dust on your shelf because you don't like the scores, obviously. It's not because they're bad albums.
This argument is had every year. It's not BEST SCORE, it's BEST ALBUM.
While I have probably listented to DROWSY more than JERSEY BOYS, I think that JERSEY BOYS is brilliantly produced.
I don't particularly care for the show THE COLOR PURPLE or the score, but I find that cast album to be spectacularly made. I felt the same way about SPAMALOT. I don't care for the show, but the brilliance of the cast recording kept me listening to it. It's solid and strong - and SPAMALOT won the Grammy.
I don't think SWEENEY has much of a chance. As much as I adored the show, there's nothing special about the album. DROWSY has better production values, but THE COLOR PURPLE and JERSEY BOYS have a quality to them that is unsurpassable.
"If you are going to do something, do it well. And leave something witchy."
-Charlie Manson