I just can't believe Mario Kart 8 Deluxe is selling so well. It might even surpass 20m at this rate.
Assuming that its eventually bundled ($250 MK8D bundle on Black Friday!!!) like almost every Mario Kart is than 20m seems likely.
I think it can pass Mario Kart DS to become the 2nd best selling in franchise history behind Mario Kart Wii.
When the herd loses its way, the shepard must kill the bull that leads them astray.