But arent sales the key to label someone as a singles artist or albums artist? What if they spend 100 weeks on the top 200 selling like 5000 copies
Chart rankings are more useful than raw numbers in some cases because it helps account for market variation when you are comparing artists from different eras.
Sales have nothing to do with any of this. #20 could sell 10 million singles and 100 million albums,while #10 could sell 10 million singles but 1 million albums. It goes by charting ratio, so being at one position does not necessarily mean anything good or bad in sales.
I still think esch number should be divided by the number of albums and singles. Otherwise one huge album like 21, Fearless or The Fame will indtantly put you out sooner