I don't think I like the grouping example; yes, it looks better when you show a single row from each one, but when I'm looking at 50 rows, it becomes much easie

I don't think I like the grouping example; yes, it looks better when you show a single row from each one, but when I'm looking at 50 rows, it becomes much easier to spot any outliers (like one San Francisco among 49 Los Angeleses, or a Carolina hidden among Californias).