Do you follow their charts and streaming numbers? Know which of their comebacks were more or less successful? Pay attention to the awards they are up for? Know which markets they are stronger in?
Until I started updating the MX artist thread (sporadically ) I had no idea what their sales were like or how well they were doing. But I still only find out when stuff gets tweeted. I don't know how to check sales or streaming numbers. I have no idea how people know enough to analyze the difference between sales and streaming numbers.
Do you follow all that? Do they matter to you?