Actually I think it depends who your customers of that data are. If you're supplying that data to existing customers as "nice-to-know" details, you're right on

Actually I think it depends who your customers of that data are. If you're supplying that data to existing customers as "nice-to-know" details, you're right on. But perhaps you run an advertising-based business and you're looking to increase your CPM. Well then, those details are suddenly quite valuable for advertisers if they can target a very specific audience.