Are Digital/Used Sales Making Up For The New Retail Drop?

There are multi-million dollar games out there that aren't being tracked properly when it comes to revenue. The monthly NPD figures that come out are missing a lot of the digital action when it comes to game sales, and while we saw September's numbers slump, many are wondering what the situation would be like if digital sales were accounted for. Is the game industry seeing a true decline or is it doing better than ever?

Article here