If you liked the music in the theater, I would say that is definitely worth it. It is one of my favorite OBCR's at the moment.There is also dialogue from the show that is put into the mix.
I actually like Amy Spanger's singing way better on the recording than any of the tv appearances/rehearsal videos
"Grease," the fourth revival of the season, is the worst show in the history of theater and represents an unparalleled assault on Western civilization and its values. - Michael Reidel