To each his own, but if anyone cares, I do not agree with that comment about doing the vocal over 20x until it is right.
I recut and punch in vocals all the time—no problem getting the best take you can; but when the feel and phrasing are right, I don't believe in wearing out and discouraging the singer by redoing ad nauseum.
A perfectly acceptable live take may need tweaks for a record that will be played thousands of times.
AND—and this is a biggie—people's ears have changed. When things are not in tune now, they notice it. They may not know what's wrong, but they know it isn't right.
A while back I mentioned a guy who told me I should not "micro-edit" vocals. (None of his business, but whatever.) He pointed to a song from the Woodstock era that he said didn't need technology. I agree it was a great song by a great group, but when I listen to it now, the off-key harmonies really bug me. Same for some Whitney Houston songs. She was phenomenal and one of the greatest pop singers who ever lived; but I notice things in her records now that I didn't hear during her heyday.