I don't think I've heard sell-through used before as a metric in that way, typically I recall seeing it as a percentage such as 80% of units shipped to stores h

I don't think I've heard sell-through used before as a metric in that way, typically I recall seeing it as a percentage such as 80% of units shipped to stores have sold through to consumers. Units sold is what I typically see, like Diablo 3 at 30mil. Maybe sell through here means people buying platinum/cosmetics as well?