When I lived outside of NYC, I did that all the time. POTO was a prime example, as well as Miss Saigon. I was loving the recordings, until I saw it. I hated those shows (The latter of which I finally saw Lea Salonga in it, and loved it again, because she is the true Kim).
Now, I will not buy the recording until after I've seen the show. (unless it's no longer on B'way)
"Do you know what pledge time is, Andrew"? said the PBS Executive.
"Yes", Lloyd Webber replied. "My 50th birthday special must be one program that gets done a lot."
"No", mused the man from PBS heedlessy. "Not so much. Our Stephen Sondheim Carnegie Hall concert. That's a big one."
Spoons, forks and knives seemed suddenly to suspend their motion in horror, all around the table.