I think the stigma about replacing, particularly for the first replacement, has gone down. Bernadette Peters and Elaine Stritch, two true legends of the theater, replaced in A Little Night Music, and it didn't dim their luster one bit. The current replacement cast of Hamilton has one Tony winner and two other cast members who were Tony nominees, which I don't think you would have seen 20 or 30 years ago.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"